Question

Which ones are correct?

(a) Photosynthetic $ATP$ synthesis is called photo-phosphorylation.

(b) Kranz anatomy occurs in leaf.

(c) Reduction in $NADP$ to $NADPH$ occurs during Calvin cycle.

(d) Magnesium occurs in phytol tail of chlorophyll.

• A. a, d correct
• B. a, c correct
• C. c, d correct
• D. a, b correct

Answer 1

The correct option is D a, b correct

Correct statements

Statement a: Photosynthetic $ATP$ synthesis is called photo-phosphorylation.

Elaboration: When $ATP$ is synthesised from $ADP$ and $P_i$ (inorganic phosphate) in the presence of light (photons), it is called photo-phosphorylation.

Correct statements

Statement b: Kranz anatomy occurs in leaf

Elaboration: $C_4$ plants have a special kind of anatomy in their leaves, called Kranz anatomy, in which the bundle sheath cells form several layers around the vascular bundles. The bundle sheath cells are further surrounded by layers of mesophyll cells. The thick walls and no intercellular spaces between the bundle sheath cells prevent the entry of oxygen and the escape of $C{O}_2$.

Final answer

(A) a, b correct