Photosynthesis MCQ Questions and Answers for Practice

1. Animals have to eat other things to get their food but plants can make it themselves. Plants are known as

1. directors
2. greens
3. producers
4. chefs

2. During photosynthesis plants take carbon dioxide from the air and water from the soil and convert it into

1. glucose and oxygen
2. honey
3. amino acids
4. acid rain

3. Even though plants only photosynthesise when it is light, on the whole, they are still net producers of

1. carbon dioxide
2. syrup
3. oxygen
4. light

4. Glucose can be converted into...........and stored. It can later be turned back into glucose and used in respiration

1. starch
2. DNA
3. fudge
4. chlorophyll

5. In order for the photosynthesis to take place energy in the form of..........is required

1. wind
2. light
3. electricity
4. sound

6. Name the green structures found in mesophyll cells that contain chlorophyll

1. chloroplasts
2. chlorines
3. chloroform
4. grass

7. Photosynthesis takes place mainly in the leaves, although it can occur in any cells than contain

1. glucose
2. a vacuole
3. chlorophyll
4. oxygen

8. Plants respire all the time but only photosynthesise during

1. the night
2. the day
3. bank holidays
4. both night and day

9. The cells in the............contain no chloroplasts and are transparent to allow light to penetrate into the leaf

1. palisade mesophyll
2. upper epidermis
3. spongy mesophyll
4. palisade mesophyll

10. The green chemical required for photosynthesis is

1. snotium 90
2. chloroform
3. emerald
4. chlorophyll

11. The plural of stoma is

1. stomato
2. stomata
3. tomato
4. stomas

12. The stomata are found in the.............; besides the guard cells the cells in this layer contain no chloroplasts.

1. guard cells
2. lower epidermis
3. palisade mesophyll
4. upper epidermis

13. The.................cells are packed tightly together near the top of the leaf to collect as much sunlight as possible. They contain many chloroplasts and most photosynthesis takes place in these cells.

1. upper epidermis
2. spongy mesophyll
3. palisade mesophyll
4. lower epidermis

14. The...............help to regulate the movement of gases into and out of the leaf. They also help to control the loss of water vapour (transpiration).

1. palisade mesophyll
2. upper epidermis
3. spongy mesophyll
4. guard cells

15. The..............cells contain air spaces to allow the movement of gases (i.e. carbon dioxide and oxygen) throughout the leaf.

1. upper epidermis
2. spongy mesophyll
3. palisade mesophyll
4. lower epidermis