Plant Water Relation, Ascent Of SAP and Transpiration MCQs

Plant Water Relation


Here you are provided MCQs on Plant Water Relation, Ascent of Sap and Transpiration which are very important for any pre-medical exams, you know well.

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Q.1 In fully turgid cell :-
(1) DPD = WP
(2) DPD = OP
(3) DPD = OP – TP
(4) DPD = 0

Correct Answer: (4)

Q.2 One molar solution of which substance will have maximum O.P :-
(1) NaCI
(2) Glucose
(3) Fructose
(4) Starch

Correct Answer: (1)

Q.3 Pieces of beet root do not lose their colour in cold water, but so in boiling water because
(1) The cell wall is killed in boiling water
(2) Hot water can enter cells readily
(3) The plasma membrane gets killed in boiling water and becomes permeable
(4) The pigment is not soluble in cold water

Correct Answer: (3)

Q.4 The movement of molecules from their higher concentration to lower concentration is called____.
(1) Osmosis
(2) Diffusion
(3) DPD
(4) DPG

Correct Answer: (2)

Q.5 Osomosis is the diffusion of a solution of a weaker concentration when both are seperated by semi-permeable membrane. What is error in the statement ?
(1) The movement of solvent molecule is not specified
(2) There is no mention of DPD
(3) Behavior of semipermeable membrane is not specified
(4) The exact concentration of solutions are not indicated

Correct Answer: (1)

Q.6 What statement can be cited for 10% sodium chloride solution and 10% sugar solution present ?
(1) Both have equal OP
(2) The concentration of sodium chloride solution will be less than concentration of sugar solution
(3) The OP of sugar solution will be higher than OP of sodium chloride solution
(4) DPD of sodium chloride solution will he higher than DPD of sugar solution

Correct Answer: (4)

Q.7 If a plant cell is immersed in water, the water continues to-enter the cell until the :-
(1) Concentration of the salts is the same inside the cells as outside
(2) Cell bursts
(3) Concentration of water is the same inside the cell as out side
(4) Diffusion pressure deficit is the same inside the cell as out side

Correct Answer: (4)

Q.8 If cell is reduced in size (shirnks) of placing in a solution of sugar, the solution is : –
(1) Hypertonic
(2) Hypotonic
(3) Isotonic
(4) None of the above

Correct Answer: (1)

Q.9 The process of osmosis involves : –
(1) Movement of solute through a semipermeable membrane
(2) Movement of solvent through a semipermeable membrane
(3) Movement of solution through semipermeable membrane
(4) None of the above

Correct Answer: (2)

Q.10 A cell Increases in volume if the external medium is
(1) Hypotonic
(2) Slightly hypertonic
(3) Isotonic
(4) Much more concentrated than the protoplasm of the cell

Correct Answer: (1)

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