A) In case of malic acid, amount of \[C{{O}_{2}}\] released is more than \[{{O}_{2}}\] consumed and thus value of RQ is more than 1.
B) Cork cells are dead cells and hence do not respire.
C) In glycolysis, 4 ATP molecules are produced and two are used, hence net gain of ATP is two through direct synthesis.
D) Photorespiration is a useful phenomenon.
Correct Answer: D
Solution :
Photorespiration is a wasteful phenomenon and no ATP and \[NAD{{H}_{2}}\] formation occurs here.
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