Question

Senescence as an active developmental cellular process in the growth and functioning of a flowering plant is indicated in:

• A. Annual plants
• B. Floral parts
• C. Vessels and tracheid differentiation
• D. Leaf abscission

Answer 1

The correct option is D

Leaf abscission

Senescence is an active developmental cellular process in the growth and functioning of a flowering plant, and is indicated in leaf abscission. Senescence is the changes that occur in an organism between maturity and death, i.e., aging. Characteristically there is a deterioration in functioning as the cells become less efficient in maintaining and replacing vital cells components.