Senescence as an active developmental process is indicated in:
Correct answer: C. Vessel and tracheid elements
- A. Annual plants
- B. Floral parts
- C. Vessel and tracheid elements
- D. Leaf abscission
Explanation
Xylem elements undergo programmed cell death during differentiation.
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About Forms and Functions of Plants
Plant nutrition and transport cover mineral uptake, photosynthesis, xylem movement of water and minerals, and phloem translocation of sugars. Plant growth regulators include auxins, gibberellins, cytokinins, abscisic acid and ethene, whose effects on cell division, elongation, dormancy, fruit ripening and tropic responses should not be confused with mineral nutrition.
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