Question

What is understood by the term sink in the plants?

(a) The part that needs the food

(b) The part that synthesises the food

(c) The part that is going to die

(d) The part that is going to fall

This question was addressed to me in final exam.

The query is from Mechanism of Absorption of Nutrients topic in portion Mineral Nutrition of Biology – Class 11

Answer 1

Right option is (a) The part that needs the food

To explain I would say: Usually the source is understood to be that part of the plant which synthesises the food, i.e., the leaf, and sink, the part that needs or stores the food. But, the source and the sink may be reversed depending on the season or on the plant’s needs.