Levitt performed experiments. He observed tha | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Auxin promotes cell elongation by increasing the plasticity of the cell wall and by stimulating the active transport of solutes into the cell. Whe

Vedclass · Accepted Answer

Auxin lowers the water potential of cells

Vedclass · Answer

(C) Auxin promotes cell elongation by increasing the plasticity of the cell wall and by stimulating the active transport of solutes into the cell. When auxin is applied, it increases the concentration of solutes within the cell, which in turn lowers the water potential $(\Psi_w)$ of the cell. According to the principles of osmosis, water moves from a region of higher water potential to a region of lower water potential. Even in a hypertonic solution, if the cell's internal water potential is lowered sufficiently by the accumulation of solutes, the cell can still absorb water from the surrounding medium. Therefore, the correct explanation is that auxin lowers the water potential of the cells.

Levitt performed experiments. He observed that auxin-treated cells were able to absorb water even when kept in a hypertonic solution. Which explains this observation best?

Similar Questions

Give scientific reasons: Plants bend toward the source of light.

The term $auxin$ was coined by

Pruning makes the hedge plant dense because

Went $(1928)$ reported that auxin moves from apical to basal end,i.e.,basipetally. The movement is quite fast; in roots,it is about:

Which of the following hormones is a weak organic acid having unsaturated ring structures and is derived from an amino acid?

Vedclass Test Series

Exam Paper Generator

Online Exam Module