Photosynthesis MCQ Quiz - Multiple Choice Questions & Answers Page 2

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

16. Which of the following does not affect the rate of photosynthesis

1. carbon dioxide concentration
2. light intensity
3. oxygen concentration
4. temperature

17. Which of the following is a waste product of respiration

1. helium
2. oxygen
3. carbon dioxide
4. none

18. Which of the following is NOT a product of photosynthesis

1. carbon dioxide
2. glucose
3. oxygen
4. all of the above

19. Which of the following is NOT needed in order for photosynthesis to take place

1. chlorophyll
2. glucose
3. water
4. carbon dioxide

20. Which one of the following is a product of photosynthesis (some is used inside the plant for respiration but most is not needed and is given out as a waste product)

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