Photosynthesis
Name:
Students
01/03/2023
1. What are the two products of photosynthesis?
[ ] carbon dioxide and water
[ ] glucose and carbon dioxide
[ ] glucose and oxygen
[ ] carbon dioxide and oxygen
2. What is the missing chemical? carbon dioxide + water > _______ + oxygen
[ ] starch
[ ] sucrose
[ ] glucose
[ ] protein
3. What provides the energy for photosynthesis to happen?
[ ] electricity
[ ] light
[ ] chips
[ ] heat
4. What compound do plants absorb from the soil that they need for photosynthesis?
[ ] methane
[ ] carbon dioxide
[ ] water
[ ] glucose
5. Which of the changes below will not increase photosynthesis?
[ ] increased concentrations of carbon dioxide
[ ] increased concentrations of oxygen
[ ] increased amounts of chlorophyll
[ ] increased light intensity
6. What chemical is used to test for starch?
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[ ] chlorine
[ ] Benedict's
[ ] iodine
[ ] universal indicator solution
7. Name the layer of leaf cells that has the most chloroplasts (the plant cell organelles
that contain chlorophyll).
[ ] spongy layer
[ ] palisade layer
[ ] guard cells
[ ] epidermis
8. Which gas to plants absorb from the air for photosynthesis?
[ ] carbon dioxide gas
[ ] oxygen gas
[ ] methane gas
[ ] nitrogen gas
9. The specialised cells that trap the sunlight contain a lot of?
[ ] chlorophyll
[ ] carbon dioxide
[ ] water
10. What do we call the holes in the leaf through which the carbon dioxide enters?
[ ] chlorophyll
[ ] stomata
[ ] palisade mesophyll
11. What is the name for the process by which the carbon dioxide enters the leaf?
[ ] osmosis
[ ] diffusion
[ ] active transport
12. What do we call the specialised cells that trap the sunlight?
[ ] palisade mesophyll
[ ] stomata
[ ] spongy mesophyll
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13. Where does the carbon dioxide enter the plant?
[ ] through the top of the leaf
[ ] through the stem of the plant
[ ] through the bottom of the leaf
14. Once the carbon dioxide enters the leaf it passes through gaps in a layer of cells
called ?
[ ] palisade mesophyll
[ ] spongy mesophyll
[ ] stomata
15. What do we call the tube that carries the glucose once it is made by the leaves?
[ ] the phloem
[ ] the stem
[ ] the xylem
16. What is the name of the hollow tube that takes water into the leaf?
[ ] the phloem
[ ] the stem
[ ] the xylem
17. What is the difference between the colour of the top and the bottom of a leaf?
[ ] there is no difference
[ ] the top of the leaf is darker than the underside
[ ] the bottom of the leaf is darker than the top
18. Palisade cells are adapted to photosynthesis by having many
[ ] mitochondria
[ ] chloroplasts
[ ] ribosomes
[ ] vacuoles
19. glucose molecules form a long polymer called
[ ] sucrose
[ ] starch
[ ] fructose
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20. glucose leaves the chloroplast once
[ ] constantly
[ ] photosynthesis has stopped
[ ] it's created
[ ] after the stoma have opened
21. What is glucose used for in the plant?
[ ] food, sugars, keratin for root hair cells.
[ ] respiration, storage, and cellulose for cell wall
22. where does translocation occur?
[ ] in the roots
[ ] in the xylem
[ ] in the leaves
[ ] In the phloem
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