Question

Consider the following statements and choose the correct statements:
(A) Sugarcane has kranz anatomy in their leaves
(B) Maize is a C4 plant
(C) Photolysis of water in photosynthesis require $Mg^{2+}$ ions
(D) C4 pathway of photosynthetic $CO_2$ fixation was discovered by Hatch and Slack

• A. (A), (B) and (D) only.
• B. (A), (B) and (C) only
• C. (A), (B), (C) and (D)
• D. (B), (C) and (D) only.

Hint:

Clarifying the roles of minerals in photosynthesis prevents misconceptions in plant biochemistry.

Answer 1

The Correct Option is A

Sugarcane has kranz anatomy, Maize is a C4 plant, and the C4 pathway was indeed discovered by Hatch and Slack. The statement about Mg²⁺ ions is incorrect; it is Mn²⁺ that is involved in water photolysis.