The loss of water from a plant by transpiration cools the leaf. movement of water in transpiration requires both adhesion to the conducting walls and wood fibers of the plant and cohesion of the molecules to each other. a scientist wanted to increase the rate of transpiration of a crop species to extend its range into warmer climates. the scientist substituted a nonpolar solution with an atomic mass similar to that of water for hydrating the plants. what do you expect the scientists data will indicate from this experiment?

Respuesta :

Answer:

Rate of transpiration will become negligible

Explanation:

Water is a polar solvent which means it can reorient its molecular structure is a way that it can have positive and negative configuration. Due to this specific characteristics , it can adhere to any surface and also it can join with any other polar molecule.

The transpiration process require lot of such physical interactions which are possible only due to the polar nature of water.

When water is substituted by any non polar solvent , then the rate of transpiration shall become negligible after some time.

The scientist's data will most like show that C) Transpiration rates will fall to zero as nonpolar compounds do not have the properties necessary for adhesion and cohesion.

In order for transpiration to occur:

  • cohesion enables water to be drawn up from the roots of the plant, and
  • adhesion ensures that the water being brought up does not flow back by sticking the water to the plant tissue

These properties of water are therefore necessary for transpiration. Nonpolar substances do not have these properties so transpiration would effectively cease to happen.

In conclusion, transpiration rates will fall to zero because the nonpolar solution will be unable to be pulled up the plant by cohesion and adhesion.

Find out more at https://brainly.com/question/14182801.

Options for this question include:

A) The rate of transpiration will be the same for both water and the nonpolar substance.

B) Transpiration rates will increase as nonpolar compounds undergo adhesion and cohesion with wood fibers more readily than water.

C) Transpiration rates will fall to zero as nonpolar compounds do not have the properties necessary for adhesion and cohesion.

D) The rate of transpiration will be slightly lower with the nonpolar substance as the plant will not have evolved with the nonpolar compound.