An accumulation of proline and secondary metabolites in vacuoles helps plants counteract which type of environmental stress?
A) Heat
B) Cold
C) Drought
D) Saturation
E) High heavy metal concentrations

Question

Quizplus · Accepted Answer

The accumulation of proline and secondary metabolites in vacuoles is a protective mechanism used by plants to counteract drought stress. Proline acts as an osmoprotectant and helps maintain cellular water balance under drought conditions, while secondary metabolites play a role in antioxidant defense and protection against oxidative stress. Accumulation of these substances in vacuoles can also prevent damage to cellular structures and maintain homeostasis.

An Accumulation of Proline and Secondary Metabolites in Vacuoles Helps