Plant Growth And Development Ques 5
5. Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in senescence-related genes and physiological changes
[2008]
(a) vessels and tracheid differentiation
(b) leaf abscission
(c) annual plants
(d) floral parts
Show Answer
Answer : b
Hints & Solutions
(b) Senescence is an active developmental cellular process in the growth and functioning of a flowering plant, indicated in leaf abscission. Senescence is the changes that occur in an organism between maturity and death, i.e., ageing. Characteristically there is a deterioration in functioning as the cells become less efficient in maintaining and replacing vital cells components.
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