PLANT PHYSIOLOGY
PLANT GROWTH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Division phase
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Elongation phase
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Enlargement phase
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maturation phase
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Detailed explanation-1: -Presence of most of the tissues and cell types represent the following phase of root or shoot apex.
Detailed explanation-2: -The constant dividing phase of cells at the shoot and root apex both indicate the meristematic phase of growth. The cells present in the shoot and root apex are meristematic cells.
Detailed explanation-3: -Cells of maturation zone attain their maximal size in terms of wall thickening and protoplasmic modifications.
Detailed explanation-4: -There are three phases of growth – meristematic, elongation and maturation. We can understand this better by looking at a seed. We already know that the tips of roots and shoots exhibit continuous growth and hence are meristematic. The cells in this region are rich in protoplasm and have large nuclei.