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(a) What is meant by term wilting? (b) Explain how an increase in temperature affects the rate of active transport.

      

a) What is meant by term wilting?
b) Explain how an increase in temperature affects the rate of active transport.

  

Answers


John
a)It is a phenomenon in plants where the rate of water loss to the atmosphere is more than of absorption from the soil hence turgor in cells is reduced and the plant droops

Wilting is the dropping of plants which occurs when the rate of transpiration by the plant is higher than the rate of absorption by the plant.

Wilting is when a plant loses water to the surrounding by transportation and the cells become flaccid hence the leaves of a plant drops. This occurs on a hot sunny day. When wilting persists,the plant may die. Usually wilting is reversible in that when the plant cells gain water (by watering the plant),the cells become turgid and the leaves standstill.


b) An increase in temperature activates respiratory enzymes, rate of respiration increases, hence energy needed for active transport, rate increases; temperatures raise above 40o denature respiratory enzymes, thus no respiration hence no energy and rate of active transport is low or stops.
johnmulu answered the question on April 29, 2017 at 06:14


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