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Quiz 1
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Q.1
At atmospheric pressure, the water potential is equal to_________
a) Gravitational potential
b) Pressure potential
c) Solute potential
d) Matrix potential
Q.2
The pressure built up against the cell wall of a plant cell due to diffusion of water causes the cell to become _________
a) flaccid
b) turgid
c) plasmolysed
d) imbibed
Q.3
Affinity between the absorbent and the liquid is pre-requisite condition for imbibition.
a) True
b) False
Q.4
Pressure potential is ________
a) constant
b) zero
c) positive
d) negative
Q.5
The space between the cell wall and the shrunken protoplast in a plasmolysed cell is occupied by ________
a) hypotonic solution
b) hypertonic solution
c) isotonic solution
d) water
Q.6
Which of the following is a reversible phenomenon?
a) Plasmolysis
b) Turgidity
c) Flaccidity
d) Imbibition
Q.7
Seedlings emerge out of the soil into open surroundings due to imbibition.
a) True
b) False
Q.8
Imbibition is commonly seen in _____
a) liquids
b) gases
c) suspension
d) colloids
Q.9
Which of the following is not an important determinant of the movement of molecules in or out of the cell?
a) Cell membrane
b) Thickness of membrane
c) Tonoplast
d) Membrane of vacuole
Q.10
Statement A: Osmotic pressure is negative.
a) Both the statements are true
b) Both the statements are false
c) Statement A is true but Statement B is false
d) Statement B is true but Statement A is false
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