Multiple choice

Which of the following statements are not true regarding C4 plants?

P. Carbon dioxide fixation occurs twice. Q. PEP acts as carbon dioxide acceptor in bundle sheath. R. Leaf anatomy is of Kranz type. S. They require 18 ATP for synthesis of one molecule of glucose.

  1. P and Q

  2. P and R

  3. Q and R

  4. Q and S

  5. R and S
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because phosphoenolpyruvate (PEP) acts as carbon dioxide acceptor in mesophyll cells and ribulose-1,5-bisphosphate (RuBP) in bundle sheath functions as carbon dioxide acceptor and C4 plants require 30 ATP molecules for synthesis of one molecule of glucose.

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