Plant Leaf -Multiple Choice Questions Quiz

(a) Absorption of nutrients
(b) Transport of water
(c) Release of oxygen
(d) Exchange of gases

Question 2: Which of the following layers of a plant leaf is responsible for photosynthesis?

(a) Cuticle
(b) Epidermis
(c) Mesophyll
(d) Stomata

Question 3: What is the purpose of the waxy cuticle layer on a plant leaf?

(a) To absorb water
(b) To protect against pathogens
(c) To regulate gas exchange
(d) To reduce water loss

Question 4: Which of the following pigments is responsible for the green color of plant leaves?

(a) Chlorophyll
(b) Anthocyanin
(c) Carotenoid
(d) Xanthophyll

Question 5: What is the function of veins in a plant leaf?

(a) To transport water and nutrients
(b) To protect the leaf from damage
(c) To regulate gas exchange
(d) To absorb sunlight

Question 6: Which of the following plant hormones is responsible for the abscission of plant leaves?

(a) Auxin
(b) Gibberellin
(c) Ethylene
(d) Cytokinin

Question 7: Which of the following structures on a plant leaf is responsible for the absorption of light?

(a) Cuticle
(b) Epidermis
(c) Chloroplasts
(d) Stomata

Question 8: Which of the following environmental factors can cause stomata to close on plant leaves?

(a) Low light intensity
(b) High humidity
(c) High temperatures
(d) Low carbon dioxide levels

Question 9: Which of the following leaf adaptations is most commonly found in plants growing in arid environments?

Question 10: Which of the following is the process by which water is lost from plant leaves through small openings on the surface?

(a) Transpiration
(b) Respiration
(c) Photosynthesis
(d) Evapotranspiration

Results:

Total score: /10

Question 1: d

Question 2: c

Question 3: d

Question 4: a

Question 5: a

Question 6: c

Question 7: c

Question 8: c

Question 9: c

Question 10: a