Reproduction in Flowering Plants
Key ideas: flower parts, reproductive cells, and the four main processes.
Sexual reproduction in plants happens when a male reproductive cell in the pollen grain fuses with a female reproductive cell (egg cell) in the ovule. This fusion produces a seed.
- Pollination – Pollen is transferred to the stigma.
- Fertilisation – Male cell fuses with egg cell in the ovule.
- Dispersal of fruits and seeds – Seeds are carried away from the parent plant.
- Germination – A new plant starts to grow from the seed.
Flowers contain both male and female reproductive organs.
- Anther – Produces pollen grains that contain male reproductive cells.
- Filament – Holds the anther in position.
- Stigma – Sticky surface that receives pollen.
- Style – Tube that connects stigma to ovary.
- Ovary – Contains ovules (egg cells).
- Ovule – Female reproductive cell that can develop into a seed after fertilisation.
Reproduction in Flowering Plants – Practice Quiz (MCQ)
Read the question, choose A–D, then click to reveal the answer and explanation.
1. What happens during sexual reproduction in flowering plants?
A. A seed splits into two plants
B. A male cell fuses with a female cell
C. A flower changes into a leaf
D. Roots grow longer
Answer: B
Sexual reproduction involves the fusion of a male reproductive cell with a female reproductive cell to form a new seed.
2. Which part of the flower produces pollen grains?
A. Ovary B. Stigma C. Anther D. Ovule
Answer: C
The anther produces pollen grains that contain male reproductive cells.
3. Where are the egg cells found in a flower?
A. Filament B. Ovary C. Stigma D. Petal
Answer: B
The ovary contains the ovules, which are the egg cells.
4. Which of the following are female parts of the flower?
A. Anther and filament
B. Stigma, style and ovary
C. Petal and sepal
D. Ovary and anther
Answer: B
The female parts (carpel) include the stigma, style and ovary.
5. Which is the correct order of the four main processes?
A. Germination → Pollination → Fertilisation → Seed dispersal
B. Pollination → Fertilisation → Seed dispersal → Germination
C. Seed dispersal → Germination → Fertilisation → Pollination
D. Pollination → Seed dispersal → Fertilisation → Germination
Answer: B
Reproduction in flowering plants usually follows: Pollination → Fertilisation → Dispersal of fruits and seeds → Germination.
6. What is pollination?
A. The growth of a seed into a seedling
B. The spreading of seeds away from the parent plant
C. The transfer of pollen to the stigma
D. The fusion of male and female cells
Answer: C
Pollination is the transfer of pollen grains to the stigma of a flower.
7. What happens during fertilisation in plants?
A. Pollen lands on the petal
B. The seed coat breaks
C. The male cell fuses with the egg cell
D. Fruits split open to release seeds
Answer: C
During fertilisation, the male reproductive cell from the pollen fuses with the female egg cell in the ovule.
8. Why is dispersal of fruits and seeds important?
A. To make seeds larger
B. To prevent overcrowding of young plants
C. To change the colour of flowers
D. To help roots grow deeper
Answer: B
Dispersal moves seeds away from the parent plant and reduces competition for light, water and nutrients.
9. What is the main function of the stigma?
A. To make food
B. To support the anther
C. To receive pollen grains
D. To protect the ovule
Answer: C
The stigma is often sticky so that pollen grains can land and stay there.
10. Which structure connects the stigma to the ovary?
A. Style B. Filament C. Petal D. Sepal
Answer: A
The style is a tube that links the stigma to the ovary.
11. Which pair is correctly matched?
A. Anther – receives pollen
B. Ovary – produces pollen grains
C. Ovule – egg cell
D. Stigma – protects bud
Answer: C
The ovule is the egg cell that can become a seed after fertilisation.
12. After fertilisation, what usually develops from the ovule?
A. Fruit
B. Seed
C. Leaf
D. Root
Answer: B
The ovule develops into a seed, while the ovary becomes the fruit.
13. Which process helps to reduce competition between the parent plant and the young plants?
A. Pollination
B. Fertilisation
C. Seed dispersal
D. Germination
Answer: C
Seed dispersal spreads seeds away from the parent plant so they do not compete for resources.
14. Which event must happen before fertilisation can occur?
A. Fruit forms
B. Pollen lands on the stigma
C. Seed germinates
D. Seed coat breaks
Answer: B
Fertilisation can happen only after pollen lands on the stigma (pollination).
15. A plant produces many small, light seeds with wings. What is the most likely method of dispersal?
A. Water
B. Wind
C. Animals eating the fruits
D. Splitting open forcefully
Answer: B
Small, light seeds with wings are usually adapted for wind dispersal.
16. Which set of conditions is needed for most seeds to germinate?
A. Water, oxygen and warmth
B. Water and strong sunlight only
C. Oxygen and darkness only
D. Water, sunlight and flowers
Answer: A
Most seeds need water, oxygen and a suitable temperature to germinate. Light is not always needed.
17. A student removes all anthers from a flower. Which process will be affected most?
A. Seed dispersal
B. Germination
C. Pollination and fertilisation
D. Photosynthesis
Answer: C
Without anthers, the flower cannot produce pollen, so pollination and fertilisation cannot occur.
18. Which sequence best describes what happens to an ovary and its ovules after fertilisation?
A. Ovary → root, ovules → leaves
B. Ovary → fruit, ovules → seeds
C. Ovary → stem, ovules → flowers
D. Ovary → seed coat, ovules → petals
Answer: B
After fertilisation, the ovary becomes the fruit and the ovules become seeds.
19. Why does sexual reproduction in plants lead to variation among offspring?
A. Only one parent is involved
B. Seeds are dispersed to many places
C. Male and female cells from parents combine
D. Plants make food by photosynthesis
Answer: C
In sexual reproduction, male and female cells combine, mixing genetic information and causing variation.
20. Which combination of parts must be present for a flower to carry out both male and female functions?
A. Anther, filament and sepal
B. Stigma, petal and leaf
C. Anther, filament, stigma, style and ovary
D. Petal, sepal, leaf and root
Answer: C
A complete flower with anther, filament (male) and stigma, style, ovary (female) can perform both male and female reproductive roles.
Reproduction in Flowering Plants – Drag-and-Drop Practice
Drag the labels into the correct order or group. Tap “Check Answers” when you are done.
Drag the processes into the boxes to show the correct order in sexual reproduction of flowering plants.
Drag each flower part into the correct group: male or female.
Drag the stages into the boxes to show what happens from adult plant to new seedling.
Drag the events into the boxes to show the correct sequence.
Drag the steps into the boxes to show what happens from seed to young plant.
(1) Pollination
Pollination is the transfer of pollen grains from an anther to a stigma. It is the first of the four key processes in sexual reproduction of flowering plants.
Pollination happens when pollen grains produced in the anther are carried to the stigma of a flower. It prepares the flower for fertilisation but does not include the fusion of cells yet.
- On the same flower – Pollen moves from the anther to the stigma of the same flower.
- Between flowers – Pollen moves from the anther of one flower to the stigma of a different flower (same plant or another plant of the same kind).
Pollen can be moved by wind or by animals such as insects and birds. Flowers show different features depending on which agent helps them.
- Small, dull-coloured flowers.
- Little or no scent and no nectar.
- Anthers and feathery stigmas stick out to catch pollen.
- Pollen grains are light and smooth so they can be blown by wind.
- Brightly coloured petals.
- Sweet scent and nectar to attract animals.
- Anthers and stigmas are usually inside the flower.
- Pollen grains have spikes to stick onto animals’ bodies.
Pollination – Practice Quiz (MCQ)
Read the question, choose A–D, then click to reveal the answer and explanation.
1. What is pollination?
A. The growth of a seed into a seedling
B. The transfer of pollen grains from anther to stigma
C. The fusion of male and female cells
D. The splitting of a fruit to release seeds
Answer: B
Pollination is the transfer of pollen grains from an anther to a stigma.
2. Which parts are directly involved in pollination?
A. Anther and stigma
B. Ovary and ovule
C. Root and stem
D. Petal and sepal
Answer: A
Pollen is produced in the anther and received by the stigma.
3. Which statement about pollination is correct?
A. It is the same as fertilisation
B. It must happen after seed dispersal
C. It happens before fertilisation
D. It only happens in non-flowering plants
Answer: C
Pollination happens before fertilisation in the life cycle of flowering plants.
4. Pollination on the same flower happens when pollen moves from the:
A. Ovary to the ovule of another flower
B. Stigma to the anther of the same flower
C. Anther to the stigma of the same flower
D. Root to the leaf of the same plant
Answer: C
Pollination on the same flower is the transfer of pollen from the anther to the stigma of that flower.
5. Pollination across different flowers occurs when pollen moves:
A. From a leaf to a root
B. From the anther of one flower to the stigma of another flower
C. From the ovule of one flower to another ovule
D. From the stem to a leaf
Answer: B
Pollination across flowers involves pollen moving between flowers of the same species.
6. Which of the following is not a result of pollination alone?
A. Pollen lands on the stigma
B. Pollen grains are carried by bees
C. A seed is formed in the ovary
D. Pollen is blown by the wind
Answer: C
Formation of a seed happens after fertilisation, not pollination alone.
7. Which feature is typical of wind-pollinated flowers?
A. Large, brightly coloured petals
B. Strong sweet scent
C. Feathery stigma
D. Thick, sticky pollen grains
Answer: C
Wind-pollinated flowers have feathery stigmas to trap pollen in the air.
8. Why do many animal-pollinated flowers produce nectar?
A. To make pollen lighter
B. To help seeds germinate
C. To attract animals such as insects
D. To keep petals from drying up
Answer: C
Nectar is a food source that attracts animals to the flower.
9. Pollen grains of wind-pollinated flowers are usually:
A. Heavy and sticky
B. Light and smooth
C. Large and spiky
D. Colourless and liquid
Answer: B
Wind-pollinated flowers produce light, smooth pollen grains that can be blown easily.
10. Which statement about animal-pollinated flowers is correct?
A. They are always green and small
B. Their pollen grains have spikes to cling to animals
C. Their stigmas are always feathery
D. They never produce nectar
Answer: B
Pollen of animal-pollinated flowers usually has spikes or hooks to stick to animals’ bodies.
11. A flower is small, dull-coloured and has no scent. What is the most likely method of pollination?
A. Wind
B. Water
C. Animals
D. Self-pollination only
Answer: A
Such flowers are typical of wind-pollinated plants.
12. Which feature helps animal-pollinated flowers prevent pollen from being blown away by the wind?
A. Anthers and stigmas inside the flower
B. Feathery stigmas
C. Very long filaments
D. Smooth pollen grains
Answer: A
Having anthers and stigmas inside the flower keeps pollen where animals can pick it up.
13. Which pair is correctly matched?
A. Bright petals – wind-pollinated
B. Feathery stigma – animal-pollinated
C. Smooth, light pollen – wind-pollinated
D. Spiky pollen – wind-pollinated
Answer: C
Smooth, light pollen is carried easily by wind.
14. A student observes a flower with bright red petals and a strong sweet smell. Which statement is most likely true?
A. It is pollinated mainly by wind
B. It relies on animals such as birds or insects for pollination
C. It does not need pollination
D. It has no pollen grains
Answer: B
Bright colours and scent suggest animal pollination.
15. Which change would decrease the chance of wind-pollinated flowers being pollinated?
A. Producing more light pollen grains
B. Having longer filaments
C. Having smaller petals
D. Having very sticky, heavy pollen grains
Answer: D
Very sticky, heavy pollen is harder for the wind to carry.
16. Which of the following best explains why some flowers produce large amounts of pollen?
A. To make the petals heavier
B. To increase the chance that some pollen reaches a stigma
C. To help roots absorb more water
D. To keep insects away
Answer: B
Producing much pollen increases the chance that at least some will land on a stigma.
17. A flower’s anthers were removed carefully. Which process will be affected first?
A. Seed dispersal
B. Pollination
C. Germination
D. Fruit ripening
Answer: B
Without anthers, the flower cannot produce pollen, so pollination cannot occur.
18. Which statement best describes the role of bees in pollination?
A. Bees eat seeds so that plants can grow
B. Bees carry pollen from one flower to another flower
C. Bees make seeds inside the flower
D. Bees break open fruits to release seeds
Answer: B
Bees are pollinators that carry pollen between flowers.
19. Which of the following is an advantage of animal pollination over wind pollination?
A. Pollen always lands on the wrong species
B. Less pollen needs to be produced
C. Only one flower can be pollinated
D. Flowers do not need to attract pollinators
Answer: B
Animal pollination is more targeted, so less pollen is needed.
20. Which sequence shows a possible cause → effect chain for animal pollination?
A. Dull petals → bees visit the flower → pollen is carried
B. Bright petals and nectar → animals visit → pollen sticks to their bodies
C. No scent → birds visit → pollen is carried
D. Heavy pollen → wind blows it far away → pollination occurs
Answer: B
Bright petals and nectar attract animals, and pollen sticks to their bodies and is carried to other flowers.
Pollination – Drag-and-Drop Practice
Drag the labels into the correct order or group. Tap “Check Answers” when you are done.
Drag the steps into the boxes to show what happens during pollination on the same flower.
Drag each feature into the correct group: wind-pollinated, animal-pollinated, or both.
Drag the steps into the boxes to complete the cause → effect chain for animal pollination.
Drag each statement into the correct box: True or False.
Three features belong together. One does not. Drag each label into the correct box.
(2) Fertilisation – Reproduction in Flowering Plants
Key idea: a male cell travels down a pollen tube and fuses with an egg cell inside an ovule.
Fertilisation happens when the male reproductive cell from a pollen grain fuses with the egg cell (female reproductive cell) in an ovule. This fusion forms a zygote, which later develops into a seed.
- Pollination must occur first: pollen lands on the stigma.
- The pollen grain then forms a pollen tube to reach the ovule.
Pollination = transfer of pollen to stigma.
Fertilisation = fusion of male cell with egg cell (inside ovule).
Think of fertilisation as a “delivery route”. The pollen tube is like a tunnel that lets the male cell travel to the egg cell.
- Ovule → Seed
- Ovary → Fruit
- Petals and stamens often wither and fall off.
- Forms seeds for the next generation.
- Leads to fruit formation, which helps protect seeds.
- Sets up the next process: dispersal of fruits and seeds.
pollen tube, male nucleus (male cell), egg cell, ovule, fusion, zygote, ovary becomes fruit, ovule becomes seed.
(2) Fertilisation – Practice Quiz (MCQ)
Choose the best answer (A–D). Tap to reveal the answer and explanation.
1. What is fertilisation in flowering plants?
A. Pollen landing on the stigma
B. Male cell fusing with the egg cell
C. Seed bursting out of a fruit
D. Root emerging from a seed
Answer: B
Fertilisation is the fusion of the male reproductive cell with the egg cell inside the ovule.
2. Fertilisation occurs in the ______.
A. Petal
B. Stigma
C. Ovule
D. Filament
Answer: C
The male cell travels down the pollen tube to the ovule, where fertilisation takes place.
3. Which structure grows after pollen lands on the stigma?
A. Seed coat
B. Pollen tube
C. Fruit wall
D. Root hair
Answer: B
A pollen tube forms down the style so the male cell can reach the egg cell.
4. Where does the pollen tube grow?
A. Through the petal
B. Up the filament
C. Down the style
D. Into the leaf
Answer: C
The pollen tube grows down the style and leads into the ovary.
5. What must occur before fertilisation can take place?
A. Seed dispersal
B. Fruit formation
C. Pollination
D. Germination
Answer: C
Fertilisation cannot happen unless pollen first lands on the stigma (pollination).
6. After fertilisation, the ovule develops into a ______.
A. Fruit
B. Flower
C. Seed
D. Leaf
Answer: C
The ovule becomes a seed after the male and female cells fuse.
7. After fertilisation, the ovary develops into a ______.
A. Seed coat
B. Fruit
C. Root
D. Stem
Answer: B
The ovary becomes a fruit that protects the seeds inside.
8. Which structure contains the egg cell?
A. Filament
B. Anther
C. Ovule
D. Petal
Answer: C
The ovule contains the egg cell that fuses with the male cell.
9. What travels down the pollen tube?
A. A seed
B. A fruit
C. The male reproductive cell
D. The ovule
Answer: C
The male cell moves down the pollen tube to reach the ovule.
10. What forms immediately after fertilisation?
A. A zygote
B. A fruit
C. A seedling
D. A root
Answer: A
The fusion of the male cell and egg cell forms a zygote.
11. Which is the correct sequence?
A. Fertilisation → Pollination → Fruit forms
B. Fruit forms → Pollination → Seed forms
C. Pollination → Fertilisation → Seed forms
D. Seed forms → Fertilisation → Pollination
Answer: C
Correct flow: Pollination → Fertilisation → Fruit/seed formation.
12. What happens to most petals after fertilisation?
A. They grow larger
B. They turn into fruits
C. They wither and fall off
D. They become seeds
Answer: C
Petals no longer attract pollinators and usually fall off.
13. What causes genetic variation in plants?
A. Seed dispersal
B. Mixing of male and female cells
C. Growth of pollen tube
D. Water absorption by seed
Answer: B
Fertilisation mixes genetic material from two parents.
14. What must the pollen grain do to reach the egg cell?
A. Burst open
B. Form a pollen tube
C. Split into two
D. Turn into a seed
Answer: B
The pollen grain produces a pollen tube to transport the male cell.
15. Where is the style located?
A. Between stigma and ovary
B. Between ovary and root
C. Inside the seed
D. Next to the anther
Answer: A
The style connects the stigma to the ovary.
16. What forms the fruit?
A. Ovule
B. Seed coat
C. Ovary
D. Filament
Answer: C
The ovary develops into the fruit after fertilisation.
17. What forms the seed?
A. Stigma
B. Filament
C. Ovule
D. Anther
Answer: C
The ovule becomes the seed after fertilisation.
18. What event signals that fertilisation has happened?
A. Pollen lands on petal
B. Zygote is formed
C. Seed dispersal begins
D. Stem grows taller
Answer: B
Once the male cell fuses with the egg cell, a zygote is formed.
19. What is transported inside the pollen tube?
A. The male nucleus
B. A new seed
C. Water
D. Sunlight energy
Answer: A
The male nucleus (male reproductive cell) travels through the pollen tube.
20. Fertilisation in plants results in the formation of ______.
A. A flower
B. A zygote
C. More pollen
D. A root system
Answer: B
Fertilisation produces a zygote, which eventually develops into a seed.
(2) Fertilisation – Drag-and-Drop Practice
Drag the labels into the correct boxes. Tap “Check Answers” when you are done.
Arrange the steps in the correct order from after pollen lands on the stigma until fertilisation happens.
Drag each statement into the correct group: Before, During, or After fertilisation.
Drag the correct word into each blank to complete the sentences.
2) Fertilisation happens in the Blank 3.
3) After fertilisation, the ovule becomes a Blank 4 and the ovary becomes a Blank 5.
Drag the effects into the correct order after the cause. (Cause is given.)
Drag the odd-one-out into the “Odd-one-out” box. Drag the other four into “Related to fertilisation”.
(3) Dispersal of Fruits and Seeds
Exam-ready summary: meaning, why it happens, and 4 main methods.
Dispersal of fruits and seeds means spreading fruits and seeds away from the parent plant.
- Avoid overcrowding near the parent plant.
- Reduce competition for sunlight, water, mineral salts, nutrients, and space.
- Colonise new places that are suitable for growth.
Also: the way seedlings are spread out (the dispersal pattern) can give clues about the method.
• Wing-like / very light → Wind
• Waterproof / fibrous husk / floats → Water
• Hooks / spines / sticky → Animals
• Pod splits open → Splitting action
1) Wind
- Fruits may have wing-like structures.
- Seeds are often light so they can fly, glide, or drift in the air.
2) Water
- Seeds are light and can float.
- Some have fluff to increase buoyancy.
- Some have fibrous husks or waterproof coverings to help them float.
3) Splitting action
- Some fruits split open suddenly (explosive action).
- Some fruits split open gently (non-explosive) and release seeds.
4) Animals
- Fleshy, juicy fruits are eaten by animals.
- Seeds may be spat out or pass out undigested in waste.
- Some seeds have hooks/spines to cling to fur/feathers or human clothes/bags.
Wind
- Wing-like structures
- Seeds that fly or glide
- Seeds that drift in the wind
Water
- Seeds are light and can float
- Some have fluff for buoyancy
- Fibrous husks / waterproof coverings
Splitting
- Fruits split open explosively
- Fruits split open (non-explosive)
Animals
- Fleshy fruits eaten by animals
- Seeds spat out / pass out undigested
- Hooks/spines cling to fur/feathers/clothes
(3) Dispersal of Fruits and Seeds – Practice Quiz (MCQ)
Choose A–D. Click a question to reveal the answer + short explanation.
1. What does “dispersal of fruits and seeds” mean?
A. Fruits and seeds stay near the parent plant
B. Fruits and seeds are scattered away from the parent plant
C. Seeds change into flowers immediately
D. Fruits become leaves
Dispersal means spreading fruits and seeds away from the parent plant.
2. Why must seeds be dispersed?
A. To avoid overcrowding
B. To reduce competition for resources
C. To colonise new places for growth
D. All of the above
Dispersal helps avoid overcrowding, reduces competition, and allows plants to grow in new areas.
3. Which resource is NOT usually competed for by plants?
A. Sunlight
B. Water
C. Mineral salts / nutrients
D. Electricity
Plants compete for sunlight, water, nutrients/mineral salts, space, not electricity.
4. A dispersal pattern (how seedlings are spread out) can help us to…
A. know the method of dispersal
B. know the colour of the flower
C. know the age of the plant
D. know the amount of chlorophyll
The pattern of where young plants appear can give clues about the dispersal method.
5. Which is NOT a main method of dispersal?
A. Wind
B. Water
C. Splitting action
D. Photosynthesis
The main methods are wind, water, animals, splitting action.
6. Seeds with wing-like structures are most likely dispersed by…
A. Wind
B. Water
C. Animals
D. Splitting action
Wing-like structures help seeds glide in the wind.
7. Seeds that are light and can float are most likely dispersed by…
A. Wind
B. Water
C. Animals
D. Splitting action
Floating ability is an adaptation for water dispersal.
8. Fruits that split open suddenly to scatter seeds show dispersal by…
A. Wind
B. Water
C. Splitting action
D. Animals
Some pods split open (sometimes explosively) to fling seeds away.
9. Seeds with hooks or spines are most likely dispersed by…
A. Wind
B. Water
C. Animals
D. Splitting action
Hooks/spines help seeds cling to fur, feathers, clothes or bags.
10. Which feature best helps a seed float for water dispersal?
A. Bright petals
B. Waterproof covering / fibrous husk
C. Sticky stigma
D. Long roots
Waterproof coverings and fibrous husks help seeds float and stay dry.
11. A seed is very small and has fluffy hairs. What is the most likely dispersal method?
A. Wind
B. Water
C. Animals
D. Splitting action
Fluffy hairs increase surface area so the seed can be carried by wind.
12. A fruit is fleshy and juicy. What is the most likely dispersal method?
A. Wind
B. Water
C. Animals
D. Splitting action
Fleshy fruits attract animals; seeds may be spat out or passed out in waste.
13. A pod dries up and splits open, releasing seeds. This is…
A. Water dispersal
B. Wind dispersal
C. Animal dispersal
D. Splitting action dispersal
Pods that split open release seeds by splitting action.
14. Which pair is correctly matched?
A. Hooks/spines → Wind
B. Wing-like structure → Wind
C. Waterproof covering → Splitting action
D. Juicy fruit → Water
Wing-like structures help seeds travel by wind.
15. A seed has a fibrous husk and floats down a river. This suggests dispersal by…
A. Wind
B. Water
C. Animals
D. Splitting action
Floating + fibrous husk are strong clues for water dispersal.
16. Which method of dispersal is most likely to spread seeds farthest over land on a windy day?
A. Water
B. Wind
C. Animals (hooks/spines)
D. Splitting action
Wind can carry very light seeds a long distance, especially in open areas.
17. A student finds many young plants growing in a line along a riverbank downstream. The most likely dispersal method is…
A. Wind
B. Water
C. Animals
D. Splitting action
A downstream “trail” of seedlings suggests seeds were carried by water.
18. Which statement best explains why dispersal reduces competition?
A. Seeds become heavier when dispersed
B. Seeds get more sunlight during dispersal
C. Seeds grow farther away so fewer plants share the same resources
D. Seeds stop growing near the parent plant forever
Spreading out means fewer plants are crowded together, so resources are not shared by too many seedlings.
19. A plant produces seeds with hooks. Where are these seeds most likely to end up?
A. Floating in a pond
B. Stuck to animal fur or human clothing/bags
C. Blown straight up into the sky
D. Stored inside the anther
Hooks help seeds cling and travel with animals or people.
20. A plant lives in a dry field with strong winds. Which seed feature is most helpful for dispersal?
A. Thick waterproof coating
B. Wing-like structure / light seed
C. Juicy flesh around the seed
D. Heavy, smooth seed with no extra parts
In windy areas, light seeds with wing-like structures can be carried easily by wind.
(3) Dispersal of Fruits and Seeds – Drag-and-Drop Practice
Drag the chips into the correct boxes. Tap “Check Answers” when you are done.
Drag each feature into the correct dispersal method box.
Drag each description into Wind / Water / Animals / Splitting action.
Drag the odd-one-out to the correct box. Put the rest in “Related to dispersal”.
Arrange the effects in the correct order if seeds are NOT dispersed.
Drag the correct method into each scenario.
(4) Germination
How a seed grows into a seedling under suitable conditions
Germination is the process in which a baby plant inside a seed starts to grow, forming a seedling. Germination occurs only when a seed lands in a suitable and favourable environment.
A seedling is a young plant that grows from a seed. It consists of:
- Root – grows downward to absorb water
- Shoot – grows upward to form the stem and leaves
- Seed leaves – thick leaves that store food for early growth
A seed will germinate only when all three conditions are present:
Light is not required for germination. Seeds can germinate in darkness as long as water, oxygen and warmth are available.
After germination, the seedling continues to grow and eventually becomes an adult plant. The adult plant begins reproduction when it produces flowers.
(4) Germination – Practice Quiz (MCQ)
Choose A–D. Click a question to reveal the answer and a short explanation.
1. What is germination?
A. The spreading of seeds away from the parent plant
B. The growth of a baby plant in a seed into a seedling
C. The making of food by leaves
D. The fusion of male and female cells
2. A seedling is best described as…
A. A seed with a hard coat only
B. A young plant grown from a seed
C. A flower that has pollen grains
D. A fruit that contains no seeds
3. Which of the following is NOT a main part of a seedling?
A. Root
B. Shoot
C. Seed leaves
D. Petals
4. The seed leaves are important at the start because they…
A. Make seeds fly in the wind
B. Store food for early growth
C. Absorb mineral salts from soil
D. Attract pollinators
5. Which set of conditions is needed for most seeds to germinate?
A. Water, oxygen and warmth
B. Water, light and mineral salts
C. Oxygen, light and nectar
D. Warmth, nectar and mineral salts
6. Why is oxygen needed for germination?
A. To help the seed make pollen
B. To allow respiration to release energy
C. To make the seed coat harder
D. To attract animals to the seed
7. Water is important during germination mainly because it…
A. Stops respiration
B. Helps the seed swell and activates growth processes
C. Turns the seed into a fruit
D. Makes the flower smell sweet
8. Light is…
A. always needed for germination
B. not needed for germination if water, oxygen and warmth are present
C. needed to produce pollen grains
D. needed to disperse seeds
9. In an experiment, seeds are kept warm and moist but oxygen is removed. What happens?
A. Seeds germinate quickly
B. Seeds do not germinate
C. Seeds turn into fruits
D. Seeds disperse by wind
10. Seeds kept in a fridge (cold), even if moist and with oxygen, usually…
A. germinate faster
B. do not germinate because warmth is lacking
C. become flowers immediately
D. disperse by water
11. During early germination, the seedling gets most of its food from…
A. nectar in the flower
B. seed leaves (stored food)
C. mineral salts only
D. insects on petals
12. Which part usually grows downward first to anchor the seedling and absorb water?
A. Petal
B. Root
C. Anther
D. Fruit
13. Which statement is most accurate about a “suitable and favourable” place for germination?
A. It must be brightly coloured
B. It must have water, oxygen and warmth
C. It must contain nectar
D. It must be windy
14. Which sequence best describes growth after a seed germinates?
A. Adult plant → Seedling → Seed → Flower
B. Seed → Seedling → Adult plant → Flowering (reproduction)
C. Seed → Flower → Fruit → Seedling
D. Seedling → Seed → Adult plant → Fruit
15. Why do seeds that land too close to the parent plant sometimes fail to grow well?
A. The parent plant will always eat them
B. They may face strong competition for resources
C. They will turn into fruit immediately
D. They will not have a seed coat
16. Seeds are kept warm and given oxygen, but no water is added. What is the outcome?
A. Seeds germinate normally
B. Seeds do not germinate
C. Seeds disperse by animals
D. Seeds form flowers
17. Seeds germinate in tube D (warm, moist, oxygen present) but do not germinate in tube E (warm, moist, no light). What conclusion is correct?
A. Light is needed for germination
B. Light is not needed for germination
C. Water is not needed for germination
D. Warmth is not needed for germination
18. A student says: “Seeds need light to germinate because plants need sunlight.” Which correction is best?
A. Seeds need nectar, not light
B. Germination needs water, oxygen and warmth; light is needed later for photosynthesis
C. Germination needs only mineral salts
D. Germination happens only in cold places
19. Which of the following is the best evidence that oxygen is necessary for germination?
A. Seeds kept dry do not germinate
B. Seeds kept cold do not germinate
C. Seeds kept warm and moist without oxygen do not germinate
D. Seeds kept in bright light germinate
20. Which statement about germination and reproduction is correct?
A. A seed reproduces when it germinates
B. An adult plant starts reproducing when it produces flowers
C. A seedling reproduces before it forms roots
D. Germination happens only after fertilisation stops
(4) Germination – Drag-and-Drop Practice
Complete all five tasks below.
Arrange the stages from seed to young plant.
Sort into “Needed” and “Not Needed”.
Match each cause to its effect.
Drag the odd one out into the box.
Sort into correct groups.
(4) Germination – Drag-and-Drop Practice
Complete all five tasks below.
Arrange the stages from seed to young plant.
Sort into “Needed” and “Not Needed”.
Match each cause to its effect.
Drag the odd one out into the box.
Sort into correct groups.
(5) Reproduction from Spores
Key ideas: non-flowering plants, ferns, spores, spore bags, and fungi (mushroom).
Some plants do not produce flowers. A common example is a fern. Ferns do not grow from seeds. Instead, they reproduce using spores.
- Spore bags (containers of spores) are found on the underside of fern leaves.
- When the spore bags are ripe, they release spores.
- Spores are usually spread by wind and sometimes by water.
Fungi such as a mushroom can also reproduce using spores. In mushrooms, spore-producing structures are found between the gills under the cap.
- When spores are ready, they are released into the air.
- A mushroom has parts like a cap, gills, and stalk.
Ferns are plants because they can make their own food in sunlight. Fungi are not plants because they do not make their own food.
(5) Reproduction from Spores – Practice Quiz (MCQ)
Choose A–D. Click the question to reveal the answer and short explanation.
1. Which type of plant does not bear flowers?
A. Flowering plants B. Non-flowering plants C. Fruit plants D. Seed plants
Answer: B
Non-flowering plants do not produce flowers.2. Ferns reproduce using…
A. Seeds B. Fruits C. Spores D. Flowers
Answer: C
Ferns do not grow from seeds; they develop from spores.3. Spores of ferns are stored in…
A. Pollen grains B. Spore bags C. Fruits D. Roots
Answer: B
Fern spores are contained in spore bags.4. Spore bags of ferns are usually found on the…
A. Top of fern leaves B. Underside of fern leaves C. Stem tip D. Roots
Answer: B
Spore bags are found on the underside of ferns.5. When are spores released from fern spore bags?
A. When they are ripe B. When it rains C. When the fern is young D. When flowers bloom
Answer: A
Spores are released when the spore bags are ripe.6. Fern spores are usually dispersed by…
A. Wind and water B. Only animals C. Only insects D. Only humans
Answer: A
They are commonly dispersed by wind and water.7. Which living thing can also reproduce through spores?
A. Cat B. Mushroom C. Chicken D. Fish
Answer: B
Fungi such as mushrooms reproduce through spores.8. In mushrooms, spores are found mainly…
A. In the roots B. Between the gills under the cap C. Inside the leaf D. In the flower
Answer: B
Mushroom spore-producing structures are between gills under the cap.9. Which set correctly lists mushroom parts?
A. Cap, gills, stalk B. Petal, sepal, ovary C. Anther, filament, stigma D. Root, shoot, seed leaf
Answer: A
A mushroom has a cap, gills, and stalk.10. Which statement is correct?
A. Ferns grow from seeds B. Ferns bear flowers C. Ferns develop from spores D. Ferns make pollen
Answer: C
Ferns are non-flowering plants that develop from spores.11. Which pair matches correctly?
A. Fern — spore bags on underside of leaves
B. Fern — gills under cap
C. Mushroom — spore bags on underside of leaves
D. Mushroom — produces seeds
Answer: A
Fern spore bags are found on the underside of fern leaves.12. Mushrooms release spores mainly into the…
A. Soil only B. Air C. Fruit D. Seed coat
Answer: B
When ripe, spores are released into the air.13. Why are ferns classified as plants?
A. They have gills B. They can make their own food in sunlight C. They eat other organisms D. They have fur
Answer: B
Plants make their own food using sunlight (photosynthesis).14. Why are fungi not classified as plants?
A. They do not make their own food B. They have leaves C. They have seeds D. They have roots
Answer: A
Fungi do not make their own food.15. A student sees many tiny dots under fern leaves. These dots are most likely…
A. Fruits B. Spore bags C. Pollen sacs D. Egg cells
Answer: B
Spore bags are found on the underside of fern leaves.16. Which is the best description of a spore?
A. A baby plant inside a seed B. A reproductive structure that can grow into a new organism
C. A part that attracts insects D. A part that becomes fruit
Answer: B
Spores are reproductive structures that can develop into new organisms.17. Which method is commonly linked to spore dispersal?
A. Wind B. Milk C. Magnet D. Fireworks
Answer: A
Ferns spores are often dispersed by wind (and also water).18. Which statement about mushrooms is correct?
A. They reproduce using seeds B. Their spores are found between gills C. They have flowers D. They make their own food
Answer: B
Mushroom spores are located between gills under the cap.19. Which is a key similarity between ferns and mushrooms?
A. Both produce flowers B. Both reproduce using spores C. Both make fruits D. Both grow from seeds
Answer: B
Both can reproduce through spores.20. Which is the best summary of “reproduction from spores”?
A. New plants form from seeds only
B. Spores are stored in fruits and eaten by animals
C. Spores are released and dispersed to grow into new organisms
D. Flowers must be present before spores form
Answer: C
Spores are released, dispersed, and can grow into new organisms.(5) Reproduction from Spores – Drag-and-Drop Practice
Drag the labels into the correct boxes. Use “Check” and “Reset” for each task.
Drag the steps into the correct order from first to last.
Drop 1 label here
Drop 1 label here
Drop 1 label here
Drop 1 label here
Drop 1 label here
Drag each statement into the best group.
Drop labels here
Drop labels here
Drop labels here
Drop labels here
Drag the correct word/phrase into each blank box.
| Sentence | Your answer |
|---|---|
| Ferns do not grow from seeds. They develop from _____. | Blank 1 Drop here |
| The spores of ferns are stored in _____. | Blank 2 Drop here |
| Fern spore bags are found on the _____ of the fern. | Blank 3 Drop here |
| In a mushroom, spores are found between the _____ under the _____. |
Blank 4 Drop here Blank 5 Drop here |
Drag each statement into the correct column.
Drop here
Drop here
Drag the item that does not belong to “Reproduction from spores” into the “Odd one out” box.
Drop 1 item here
Human Reproduction (Part 1): Overview + Male & Female Reproductive Systems
These notes explain how humans reproduce, and the main parts and functions of the male and female reproductive systems. (PSLE-aligned, clear keywords, easy-to-revise.)
How do humans reproduce?
- Most animals reproduce sexually.
- Animals may reproduce by laying eggs or giving birth to live young.
- Humans reproduce sexually and give birth to live young.
- Humans undergo internal fertilisation, where the sperm fuses with the ovum (egg) inside the female’s body.
Main parts
- Ovaries
- Fallopian tubes / oviducts
- Womb / uterus
- Vagina
Functions of each part
| Part | Function |
|---|---|
| Ovary | Produces the female reproductive cell called the ovum (egg). |
| Fallopian tube / oviduct | Usually the place where fertilisation occurs. |
| Womb / uterus | After fertilisation, the fertilised egg implants into the thick lining of the womb. The baby grows and develops here. |
| Vagina | Forms the passage connecting the uterus to the outside of the body. |
Main parts
- Testes
- Scrotum
- Sperm ducts
- Urethra
- Penis
Functions of each part
| Part | Function |
|---|---|
| Testis | Produces the male reproductive cell called the sperm. |
| Scrotum | Holds the testes outside the body. |
| Sperm duct | Transports sperm. |
| Urethra | Carries sperm out of the body. |
| Penis | Helps deliver sperm into the female’s body. |
Key exam words to memorise
Tip: In PSLE open-ended questions, use keywords like fertilisation and implantation correctly for higher accuracy.