[1] Which of the following is not a function of the excretory system in plants?

a) Removing waste products

b) Regulating water balance

c) Photosynthesis

d) Absorbing nutrients

[2] What is the main substance removed by the excretory system in plants?

a) Carbon dioxide

b) Oxygen

c) Nitrogen

d) Water

[3] Which organelle is responsible for excretion in plants?

a) Mitochondria

b) Chloroplasts

c) Leucoplasts

d) Vacuoles

[4] What is the process by which plants excrete waste products called?

a) Respiration

b) Transpiration

c) Exosmosis

d) Turgor pressure

[5] Which type of plant cells are responsible for excretion?

a) Parenchyma cells

b) Sclerenchyma cells

c) Collenchyma cells

d) All of the above

[6] Which of the following is not a waste product excreted by plants?

a) Ammonia

b) Carbon dioxide

c) Oxygen

d) Water

[7] How do plants excrete excess water?

a) Through stomata

b) Through roots

c) Through leaves

d) All of the above

[8] Which of the following is not a function of the stomata in excretion?

a) Regulating water balance

b) Removing carbon dioxide

c) Absorbing nutrients

d) All of the above

[9] How do plants excrete excess minerals?

a) Through leaves

b) Through roots

c) Through stomata

d) All of the above

[10] What is the main function of the root hair cells in excretion?

a) Absorbing water

b) Excreting waste products

c) Regulating water balance

d) None of the above

Answers:

1. C
2. A
3. D
4. C
5. A
6. C
7. D
8. D
9. B
10. B