Plant Physiology Questions And Answers.

1.Cohesion of water molecules is due to___________
A. Diffusion
B. Osmosis
C. Gravitational force
D. Surface tension

2.Which of the following is NOT the property of water?
A. Nonpolar molecule
B. Excellent solvent
C. High heat of vaporization
D. High specific heat

3.Name the term which is given for the movement of water through a semipermeable membrane?
A. Diffusion
B. Osmosis
C. Tonicity
D. Transpiration

4.What is the measure of the osmotic pressure gradient of solutions separated by a semipermeable membrane?
A. Water potential
B. Ficks law
C. Turgor pressure
D. Tonicity

5.Name the condition in which protoplast of the plant cell shrinks away.
A. Turgid
B. Plasmolysis
C. Flaccid
D. Rigid