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Attraction of water molecules to polar surfaces is known as

Cohesion
Capillarity
Surface tension
Adhesion
Additional Questions

Which of the following is not a purpose of transpiration?

Answer

When the conditions are dry, a grass leaf curls inward to minimize water loss due to presence of

Answer

Guard cells help in

Answer

Which one of the following denotes the water potential of the mesophyll cell in wilted condition?

Answer

Identify the correct relationship with reference to water potential of a plant cell.

Answer

The values osmotic potential π and pressure potential ρ of cells A, B, C and D are given below:

Cellπρ
Cell A–1.00.5
Cell B–0.60.3
Cell C–1.20.6
Cell D–0.80.4

Identify the correct sequence that shows the path of movement of water from among the following:

Answer

Steroid hormones easily pass through the plasma membrane by simple diffusion because they

Answer

Assertion (A): K+ ion accumulation found in Nitella depends on its respiratory activity.

Reason (R): Absorption of all ions in plants completely depends on the usage of metabolic energy.

The correct answer is

Answer

Guttation is the result of

Answer

Humidity in atmosphere decreases rate of

Answer
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