Plant Water Relations

IMPORTANT

Plant Water Relations: Overview

This Topic covers sub-topics such as Osmosis, Osmotic Pressure, Isotonic Solutions, Hypotonic Solutions, Hypertonic Solutions, Flaccidity, Plasmolysis, Pressure Potential, Solute Potential, Water Potential, Imbibition and, Plant Water Relation

Important Questions on Plant Water Relations

EASY
IMPORTANT

In rainy seasons, the door gets swelled due to

MEDIUM
IMPORTANT

Which of the following is/are the factor/s that affect/s chemical potential of water?

MEDIUM
IMPORTANT

The chemical potential of pure water is less than that of a solution.

EASY
IMPORTANT

Fill in the blank with the correct answer from the bracket.

The chemical potential of pure water at normal temperature and pressure is _____. (1, 0, -1)

EASY
IMPORTANT

Define the chemical potential of water.

EASY
IMPORTANT

Match the following list-I with list-II and select the option with correct matching.

  List -I   List - II
A. Water potential of 10% salt solution I. Positive
B. Pressure potential in a normal cell II. Negative
C. Pressure potential in a plasmolysed cell III. Positive
D. Matric potential on the surface of the wood IV. Negative
    V. Zero

EASY
IMPORTANT

The osmotic pressure is independent of the temperature.

EASY
IMPORTANT

Fill in the blank with the correct option provided in the bracket.

_____(Temperature/Light/Humidity) affects osmotic pressure of a solution.

EASY
IMPORTANT

Osmotic pressure is independent upon the solute concentration of a solution.

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The development of concentration gradient is a prerequisite condition for active transport.

EASY
IMPORTANT

Which transport process is independent of concentration gradient?

EASY
IMPORTANT

Which of the following factor affect the osmotic pressure?

MEDIUM
IMPORTANT

Define osmotic pressure and list factors that affect osmotic pressure.

EASY
IMPORTANT

Facilitated diffusion is independent of concentration gradient.

MEDIUM
IMPORTANT

Define concentration gradient. How it is related to osmosis?

MEDIUM
IMPORTANT

Which of the following is required for the 'uphill transport' of substances through a membrane?

HARD
IMPORTANT

Water potential of a system, ψ = 

HARD
IMPORTANT

Water potential is determined by 

MEDIUM
IMPORTANT

Wooden doors swell up during the rainy season is due to osmosis.

MEDIUM
IMPORTANT

The water potential of a solution is always negative.