Question

Assertion: In plants, waste products are stored as resins and gums in old non-functional xylem.

Reason

: Plants do not have excretory organs to dispose off waste products.

(a) Both A and R are true, and R is correct explanation of the assertion.

(b) Both A and R are true, but R is not the correct explanation of the assertion.

O(c) A is true, but R is false.

(d) A is false, but R is true.​

Answer 1

Explanation:

Both A and R are true, and R is correct explanation of the assertion.

Answer 2

a) Both A and R are true, and R is the correct explanation of the assertion.

Explanation:

• The resins and gums are stored in the plant part called the old xylem.
• Other than that, the by-products of metabolism like gums, latex, resins, and oils that are not useful to the plant are stored in plant parts like barks, stems, leaves, etc.
• Eventually, these parts are shed off, getting rid of the waste. Resins and gums are metabolic by-products of plant tissues.
• These by-products are accumulated in the vacuoles of the aging cell, such as the old xylem.
• These cells die and then fall off finally. Unlike animals, plants do not have specialized excretory organs.
• Excess carbon dioxide and oxygen are excreted from the plant through the stomata in the leaves.