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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. In which main plant organ does most photosynthesis take place: the leaves or the roots?
2. In which cell organelles inside palisade leaf cells does photosynthesis occur: chloroplasts or ribosomes?
3. How are dandelion and maple seeds adapted to be dispersed away from the parent plant: by wind, or by sinking in deep water?
4. What do we call the process when a seed absorbs water, swells and begins to sprout into a seedling: germination or transpiration?
5. What are the tiny openings on the underside of leaves that open and close to control gas exchange and water loss: stomata or tubers?
6. What is the transfer of pollen from the anther (male part) to the stigma (female part) of a flower called: pollination or germination?
7. Which part of a plant anchors it in the soil and absorbs water and dissolved minerals: the roots or the petals?
8. Which three conditions do most seeds need to germinate: water, oxygen and warmth, or darkness, ice and salt?
9. How are coconut seeds adapted to travel between tropical islands: they float on ocean currents, or they attach to bird feathers?
10. What sugar do plants produce during photosynthesis to use for energy and growth (or store as starch): glucose or lactose?
11. What green pigment inside plant chloroplasts absorbs light energy for photosynthesis: chlorophyll or haemoglobin?
12. Which vascular tissue consists of hollow tubes that carry water and dissolved mineral ions upward from the roots to the leaves: xylem or petals?
12 questions · Seed 104729 · 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. In which main plant organ does most photosynthesis take place: the leaves or the roots?
LeavesBroad green leaves capture sunlight and carbon dioxide for photosynthesis.
2. In which cell organelles inside palisade leaf cells does photosynthesis occur: chloroplasts or ribosomes?
ChloroplastsChloroplasts contain chlorophyll and the enzymes needed for photosynthesis.
3. 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.
4. What do we call the process when a seed absorbs water, swells and begins to sprout into a seedling: germination or transpiration?
GerminationGermination is the growth of an embryonic plant contained within a seed.
5. 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.
6. 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.
7. 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.
8. Which three conditions do most seeds need to germinate: water, oxygen and warmth, or darkness, ice and salt?
Water, oxygen and warmthSeeds require water to activate enzymes, oxygen for respiration, and suitable warmth.
9. How are coconut seeds adapted to travel between tropical islands: they float on ocean currents, or they attach to bird feathers?
They float on ocean currentsA coconut’s fibrous, air-filled husk makes it buoyant and waterproof in seawater.
10. What sugar do plants produce during photosynthesis to use for energy and growth (or store as starch): glucose or lactose?
GlucosePhotosynthesis synthesises glucose (C₆H₁₂O₆), which plants use in respiration or convert to starch and cellulose.
11. What green pigment inside plant chloroplasts absorbs light energy for photosynthesis: chlorophyll or haemoglobin?
ChlorophyllChlorophyll absorbs mainly red and blue light and reflects green light.
12. Which vascular tissue consists of hollow tubes that carry water and dissolved mineral ions upward from the roots to the leaves: xylem or petals?
XylemXylem vessels transport water and minerals in a one-way flow from roots to leaves.
12 questions · Seed 104729 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Plants, leaves & photosynthesis
Take your time. Show your thinking.
1. In which main plant organ does most photosynthesis take place: the leaves or the roots?
2. In which cell organelles inside palisade leaf cells does photosynthesis occur: chloroplasts or ribosomes?
3. How are dandelion and maple seeds adapted to be dispersed away from the parent plant: by wind, or by sinking in deep water?
4. What do we call the process when a seed absorbs water, swells and begins to sprout into a seedling: germination or transpiration?
5. What are the tiny openings on the underside of leaves that open and close to control gas exchange and water loss: stomata or tubers?
6. What is the transfer of pollen from the anther (male part) to the stigma (female part) of a flower called: pollination or germination?
7. Which part of a plant anchors it in the soil and absorbs water and dissolved minerals: the roots or the petals?
8. Which three conditions do most seeds need to germinate: water, oxygen and warmth, or darkness, ice and salt?
9. How are coconut seeds adapted to travel between tropical islands: they float on ocean currents, or they attach to bird feathers?
10. What sugar do plants produce during photosynthesis to use for energy and growth (or store as starch): glucose or lactose?
11. What green pigment inside plant chloroplasts absorbs light energy for photosynthesis: chlorophyll or haemoglobin?
12. Which vascular tissue consists of hollow tubes that carry water and dissolved mineral ions upward from the roots to the leaves: xylem or petals?
12 questions · Seed 104729 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Plants, leaves & photosynthesis
Answers and reasoning. Review before teaching.
1. In which main plant organ does most photosynthesis take place: the leaves or the roots?
LeavesBroad green leaves capture sunlight and carbon dioxide for photosynthesis.
2. In which cell organelles inside palisade leaf cells does photosynthesis occur: chloroplasts or ribosomes?
ChloroplastsChloroplasts contain chlorophyll and the enzymes needed for photosynthesis.
3. 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.
4. What do we call the process when a seed absorbs water, swells and begins to sprout into a seedling: germination or transpiration?
GerminationGermination is the growth of an embryonic plant contained within a seed.
5. 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.
6. 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.
7. 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.
8. Which three conditions do most seeds need to germinate: water, oxygen and warmth, or darkness, ice and salt?
Water, oxygen and warmthSeeds require water to activate enzymes, oxygen for respiration, and suitable warmth.
9. How are coconut seeds adapted to travel between tropical islands: they float on ocean currents, or they attach to bird feathers?
They float on ocean currentsA coconut’s fibrous, air-filled husk makes it buoyant and waterproof in seawater.
10. What sugar do plants produce during photosynthesis to use for energy and growth (or store as starch): glucose or lactose?
GlucosePhotosynthesis synthesises glucose (C₆H₁₂O₆), which plants use in respiration or convert to starch and cellulose.
11. What green pigment inside plant chloroplasts absorbs light energy for photosynthesis: chlorophyll or haemoglobin?
ChlorophyllChlorophyll absorbs mainly red and blue light and reflects green light.
12. Which vascular tissue consists of hollow tubes that carry water and dissolved mineral ions upward from the roots to the leaves: xylem or petals?
XylemXylem vessels transport water and minerals in a one-way flow from roots to leaves.
12 questions · Seed 104729 · Age guidance, not curriculum certification