CIE iGCSE Co-Ordinated Science B6.1 Photosynthesis Exam Style Questions Paper 2
Question
Which statement about the process of photosynthesis is correct?
(A) Chlorophyll produces chemical energy for the synthesis of carbohydrates.
(B) Chlorophyll produces light energy for the synthesis of carbohydrates.
(C) Chlorophyll transfers chemical energy to light energy for the synthesis of carbohydrates.
(D) Chlorophyll transfers light energy to chemical energy for the synthesis of carbohydrates.
▶️Answer/Explanation
Ans: D
Question
Oxygen produced in palisade mesophyll cells by photosynthesis diffuses into the air spaces in the leaf.
What causes this movement?
(A) osmosis between the leaf cells
(B) evaporation of water from mesophyll cells
(C) difference in oxygen concentration inside and outside the cells
(D) wind blowing over the leaves
▶️Answer/Explanation
Ans: C
Question
How many molecules of carbon dioxide are needed to produce six molecules of glucose?
(A) 1 (B) 2 (C) 3 (D) 36
▶️Answer/Explanation
Ans: D
Question
What is the manufacture of carbohydrates from raw materials using light energy called?
(A) growth
(B) photosynthesis
(C) respiration
(D) reproduction
▶️Answer/Explanation
Ans: B