Read the following four statements (A-D). How many of the above statements are correct?
(A) Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
(B) In dicot stems, a new cambium originates from cells of pericycle at the time of

Question

Read the following four statements (A-D). How many of the above statements are correct?
(A) Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.
(C) Stamens in flowers of Gloriosa and Petunia are polyandrous.
(D) Symbiotic nitrogen-fixers occur in free-living state also in soil.

Accepted Answer

Three. Statements A, B, and D are correct, while C is incorrect. Photophosphorylation and oxidative phosphorylation both move protons against their gradient; dicot stems form new cambium from pericycle cells during secondary growth; and many symbiotic nitrogen-fixers also exist freely in soil. Gloriosa and Petunia do not have polyandrous stamens.

Solution

Related NEET Biology questions