SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What process can cause cells to elongate?
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The movement of protons into the cell wall; loosening of the cellulose; efflux of water
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The movement of protons into the cell wall; loosening of the cellulose; influx of water
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The movement of protons into the cytoplasm; loosening of the cell wall; influx of water
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The movement of protons into the nucleus; activating genes to loosen the cell wall; influx of water
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Explanation:
Detailed explanation-1: -The main enlargement occurs after cells have left the meristem and often relies on a combination of two distinct processes: endoreplication and cell expansion. Cell expansion is an increase in cell size through vacuolization and enlargement of the vacuole leading to differentiation.
Detailed explanation-2: -In biophysical terms, cell growth begins by selective loosening of the cell wall, resulting in a relaxation of wall stress; this action creates the impetus for water uptake and physical enlargement of the cell by a process in which the wall polymers slide or otherwise separate to increase wall surface area 1, 35.
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