Question

Select the correct statement.

• A. Secretion is the ejection of waste material from the body.
• B. Excretion is the release of material within the body.
• C. Secretion and excretion both are the movement of unwanted material in the blood.
• D. Excretion is the release of unwanted material from the body.

Answer 1

The correct option is D Excretion is the release of unwanted material from the body.

Excretion is the process of removal of metabolic wastes from the body.

It is a passive process. The plant stores its excretory material in old, ageing and dying cells. eg.- gums, resins, etc.

On the other hand, secretion is the process in which the materials are not necessarily ejected out of the body. The materials are also shifted from one place to other in the body.

So, the correct option is 'Excretion is the release of unwanted material from the body.'