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Plants, leaves & photosynthesis
Explore how roots, stems, leaves and flowers support plant growth and photosynthesis. Review suitability for your learners before teaching.
Worksheet StudioPractice pack · Ages 7-9
Plants, leaves & photosynthesis
Take your time. Show your thinking.
1. What is the role of the green sepals on the outside of a flower bud: to protect the unopened flower bud, or to absorb soil nitrates?
2. What is the transfer of pollen from the anther (male part) to the stigma (female part) of a flower called: pollination or germination?
3. Which part of a flower produces and holds the pollen grains: the anther (stamen) or the sepal?
4. In which cell organelles inside palisade leaf cells does photosynthesis occur: chloroplasts or ribosomes?
5. Which part of the plant transports water upward from the roots and supports the leaves and flowers: the stem or the seed coat?
6. Why do many insect-pollinated flowers have brightly coloured petals and sweet nectar: to attract pollinators, or to absorb soil water?
7. How are dandelion and maple seeds adapted to be dispersed away from the parent plant: by wind, or by sinking in deep water?
8. Why do plants need magnesium ions from the soil: to make green chlorophyll, or to attract wind?
9. Which part of a plant anchors it in the soil and absorbs water and dissolved minerals: the roots or the petals?
10. Which gas do plants take in from the air through tiny pores (stomata) to use in photosynthesis: carbon dioxide or nitrogen?
11. Why do seeds scatter (disperse) away from the parent plant: to reduce competition for light, water and minerals, or to stay in the shade?
12. What are the tiny openings on the underside of leaves that open and close to control gas exchange and water loss: stomata or tubers?
12 questions · Seed 104730 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9
Plants, leaves & photosynthesis
Answers and reasoning. Review before teaching.
1. What is the role of the green sepals on the outside of a flower bud: to protect the unopened flower bud, or to absorb soil nitrates?
To protect the unopened flower budSepals enclose and protect the developing petals before the flower opens.
2. What is the transfer of pollen from the anther (male part) to the stigma (female part) of a flower called: pollination or germination?
PollinationPollination transfers pollen grains by insects, birds or wind so fertilisation can occur.
3. Which part of a flower produces and holds the pollen grains: the anther (stamen) or the sepal?
Anther (stamen)The stamen is the male part of the flower, consisting of a filament supporting the pollen-producing anther.
4. In which cell organelles inside palisade leaf cells does photosynthesis occur: chloroplasts or ribosomes?
ChloroplastsChloroplasts contain chlorophyll and the enzymes needed for photosynthesis.
5. Which part of the plant transports water upward from the roots and supports the leaves and flowers: the stem or the seed coat?
StemXylem vessels in the stem transport water and minerals upward to the leaves.
6. Why do many insect-pollinated flowers have brightly coloured petals and sweet nectar: to attract pollinators, or to absorb soil water?
To attract pollinatorsBees and butterflies visit for nectar and carry pollen between flowers.
7. How are dandelion and maple seeds adapted to be dispersed away from the parent plant: by wind, or by sinking in deep water?
By windParachute-like plumes on dandelions and winged samaras on maples catch the wind.
8. Why do plants need magnesium ions from the soil: to make green chlorophyll, or to attract wind?
To make green chlorophyllMagnesium is the central atom in every chlorophyll molecule; deficiency causes yellow leaves (chlorosis).
9. Which part of a plant anchors it in the soil and absorbs water and dissolved minerals: the roots or the petals?
RootsRoot hairs increase surface area to absorb water and minerals while anchoring the plant.
10. Which gas do plants take in from the air through tiny pores (stomata) to use in photosynthesis: carbon dioxide or nitrogen?
Carbon dioxidePlants combine carbon dioxide and water using light energy to make glucose and oxygen.
11. Why do seeds scatter (disperse) away from the parent plant: to reduce competition for light, water and minerals, or to stay in the shade?
To reduce competition for light, water and mineralsSeed dispersal prevents overcrowding around the parent plant.
12. What are the tiny openings on the underside of leaves that open and close to control gas exchange and water loss: stomata or tubers?
StomataGuard cells regulate stomata to balance carbon dioxide uptake with water conservation.
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Plants, leaves & photosynthesis
Take your time. Show your thinking.
1. What is the role of the green sepals on the outside of a flower bud: to protect the unopened flower bud, or to absorb soil nitrates?
2. What is the transfer of pollen from the anther (male part) to the stigma (female part) of a flower called: pollination or germination?
3. Which part of a flower produces and holds the pollen grains: the anther (stamen) or the sepal?
4. In which cell organelles inside palisade leaf cells does photosynthesis occur: chloroplasts or ribosomes?
5. Which part of the plant transports water upward from the roots and supports the leaves and flowers: the stem or the seed coat?
6. Why do many insect-pollinated flowers have brightly coloured petals and sweet nectar: to attract pollinators, or to absorb soil water?
7. How are dandelion and maple seeds adapted to be dispersed away from the parent plant: by wind, or by sinking in deep water?
8. Why do plants need magnesium ions from the soil: to make green chlorophyll, or to attract wind?
9. Which part of a plant anchors it in the soil and absorbs water and dissolved minerals: the roots or the petals?
10. Which gas do plants take in from the air through tiny pores (stomata) to use in photosynthesis: carbon dioxide or nitrogen?
11. Why do seeds scatter (disperse) away from the parent plant: to reduce competition for light, water and minerals, or to stay in the shade?
12. What are the tiny openings on the underside of leaves that open and close to control gas exchange and water loss: stomata or tubers?
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Plants, leaves & photosynthesis
Answers and reasoning. Review before teaching.
1. What is the role of the green sepals on the outside of a flower bud: to protect the unopened flower bud, or to absorb soil nitrates?
To protect the unopened flower budSepals enclose and protect the developing petals before the flower opens.
2. What is the transfer of pollen from the anther (male part) to the stigma (female part) of a flower called: pollination or germination?
PollinationPollination transfers pollen grains by insects, birds or wind so fertilisation can occur.
3. Which part of a flower produces and holds the pollen grains: the anther (stamen) or the sepal?
Anther (stamen)The stamen is the male part of the flower, consisting of a filament supporting the pollen-producing anther.
4. In which cell organelles inside palisade leaf cells does photosynthesis occur: chloroplasts or ribosomes?
ChloroplastsChloroplasts contain chlorophyll and the enzymes needed for photosynthesis.
5. Which part of the plant transports water upward from the roots and supports the leaves and flowers: the stem or the seed coat?
StemXylem vessels in the stem transport water and minerals upward to the leaves.
6. Why do many insect-pollinated flowers have brightly coloured petals and sweet nectar: to attract pollinators, or to absorb soil water?
To attract pollinatorsBees and butterflies visit for nectar and carry pollen between flowers.
7. How are dandelion and maple seeds adapted to be dispersed away from the parent plant: by wind, or by sinking in deep water?
By windParachute-like plumes on dandelions and winged samaras on maples catch the wind.
8. Why do plants need magnesium ions from the soil: to make green chlorophyll, or to attract wind?
To make green chlorophyllMagnesium is the central atom in every chlorophyll molecule; deficiency causes yellow leaves (chlorosis).
9. Which part of a plant anchors it in the soil and absorbs water and dissolved minerals: the roots or the petals?
RootsRoot hairs increase surface area to absorb water and minerals while anchoring the plant.
10. Which gas do plants take in from the air through tiny pores (stomata) to use in photosynthesis: carbon dioxide or nitrogen?
Carbon dioxidePlants combine carbon dioxide and water using light energy to make glucose and oxygen.
11. Why do seeds scatter (disperse) away from the parent plant: to reduce competition for light, water and minerals, or to stay in the shade?
To reduce competition for light, water and mineralsSeed dispersal prevents overcrowding around the parent plant.
12. What are the tiny openings on the underside of leaves that open and close to control gas exchange and water loss: stomata or tubers?
StomataGuard cells regulate stomata to balance carbon dioxide uptake with water conservation.
12 questions · Seed 104730 · Age guidance, not curriculum certification