SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is/are involved in explaining how auxin causes cell elongation?I. an increase in pH breaks hydrogen bonds between cellulose fibresII. auxin activates specific genesIII. a protein pump transports protons from the cell wall to the cytoplasm
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I and II only
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II only
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I, II and II
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II and III only
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Explanation:
Detailed explanation-1: -Auxin is a key regulator of plant growth and development, orchestrating cell division, elongation and differentiation, embryonic development, root and stem tropisms, apical dominance, and transition to flowering.
Detailed explanation-2: -Auxin: Auxin is the plant hormone responsible for the elongation of cells. The word auxin, which means “to grow, ‘’ is frequently used in the fields of horticulture and agriculture.
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