Question

Select the characters not applicable to C${}_3$ plants.

(i) Primary CO${}_2$ acceptor is PEP.

(ii) The plants have RuBisCO.

(iii) Initial carboxylation reaction occurs in bundle sheath cells.

(iv) Calvin cycle occurs only in bundle sheath cells.

• A. iii and iv only
• B. ii, iii and iv only
• C. i and ii only
• D. i, iii and iv only
  

Answer 1

Answer: (D)

i, iii and iv only

A) $C_3$ plants do not have bundle sheath cells. So, (iii) and (iv) are not applicable.
B) $C_3$ plants have RuBisCO. So (ii) is applicable.

C) The primary carbon dioxide acceptor in $C_3$ plants is RuBP. So, (i) is not applicable.
D) i, iii and iv are not applicable.
So the correct answer is 'i, iii and iv only'.