Which one increases in the absence of light? (a) Uptake of minerals (b) Uptake of water (c) Elongation of internodes (d) Ascent of sap
Which one increases in the absence of light?
(a) Uptake of minerals
(b) Uptake of water
(c) Elongation of internodes
(d) Ascent of sap
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The correct option is (c) Elongation of internodes.
Explanation:
In general intense light retards growth in plants. High light intensities induce dwarfening of the plant. Absence of light reduces the overall growth, photosynthesis, uptake of minerals and ascent of sap. However, the elongation of internodes is seen to occur in the absence of light.
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