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Which of the following is not true about transpiration * Regulated by lons concentration Regulated by water potential Regulat
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Ans. 1 B. Regulated by water potential.

The rate of transpiration is plants controlled by stomatal aperture, and these small pores open especially for photosynthesis

Water is transpired by a plant via stomata, which means water concentration in these areas will be especially low. When water concentration is drops in the stroma areas the opening to the external environment closes. Stomata therefore, play a regulating role in the homeostasis of water control.

Ans. 2 B cortisol

Lipid-soluble hormones easily diffuse through the cell membrane so,  Steroid hormones are the most common circulating lipid-soluble hormones. Steroid hormones include: hormone testosterone, estrogens, progesterone, aldosterone and cortisol.

Ans. 3 D cause intracellular infection.

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