Question 1

Which of the following is responsible for guttation in banana leaves?

Root pressure
Osmotic pressure
Wall pressure
Turgor pressure

Answer

Correct Option: A

Question 2

Which of the following provides rigidity to the soft tissues such as leaves?

Flaccidity of cells
Turgidity of cells
Flocudity of cells
Cell membrane of cells

Answer

Correct Option: B

Question 3

Which of the following processes is responsible for opening of stomata?

Movement of solutes into the guard cells
Movement of solutes outside the guard cells
Movement of water into the guard cells
Movement of water outside the guard cells

Answer

Correct Option: C

Question 4

In which of the following cases is plasmolysis not involved?

Addition of salt in pickle to kill bacteria
Salting of meat to kill germs
Killing of weeds by sprinkling salts around their base
Killing of insects in a field using insecticides

Answer

Correct Option: D

Question 5

Which of the following statements is NOT true?

A living selective membrane is essential for active transport.
Diffusion of solutions is a rapid process.
No energy is required for osmosis.
Imbibition is an important force in ascent of sap.

Answer

Correct Option: B

Question 6

Which of the following events takes place when water enters a plasmolysed cell before its death?

Flaccidity
Deplasmolysis
Imbibition
Turgidity

Answer

Correct Option: B

Question 7

Which of the following is not caused by turgidity or turgor pressure?

Cracking of concrete floor by roots of the adjoining trees
Development of root pressure
Rigidity of leaves
Closure of stomata

Answer

Correct Option: D

Question 8

Which of the following statements is NOT true?

Deplasmolysis occurs due to loss of water content of a cell.
Food material is transported through phloem.
Root pressure forces water up through the stem to leaves.
Upward flow of minerals occurs through xylem.

Answer

Correct Option: A

Question 9

Which of the following processes occurs in opposite direction to diffusion?

Endosmosis
Exosmosis
Active transport
Effusion

Answer

Correct Option: C

Question 10

The pressure exerted by the cell contents on the cell wall is called__________.

turgor pressure
wall pressure
osmotic pressure
diffusion pressure

Answer

Correct Option: A

Question 11

On uprooting a plant, which of the following is responsible for wilting of leaves?

Cessation of photosynthesis
Destruction of cell wall
Lysis of cell membrane
Loss of turgidity

Answer

Correct Option: D

Question 12

Match the following:


(i) Osmosis	(A) Hydrophilic compounds
(ii) Diffusion	(B) Water only
(iii) Active transport	(C) Rapid in gases
(iv) Imbibition	(D) ATP

(i) – (D), (ii) – (A), (iii) – (B), (iv) – (C)
(i) – (B), (ii) – (C), (iii) – (D), (iv) – (A)
(i) – (B), (ii) – (A), (iii) – (D), (iv) – (C)
(i) – (B), (ii) – (C), (iii) – (B), (iv) – (A)

Answer

Correct Option: B

Question 13

Which of the following occurs as a result of endosmosis?

Flaccidity
Shrinkage
Turgidity
Plasmolysis

Answer

Correct Option: C

Question 14

Which of the following statements is NOT true?

Osmosis is a type of diffusion.
Energy is not required for imbibition.
Exosmosis may cause bursting of a cell.
Active transport involves movement of ions or salts.

Answer

Correct Option: C

Question 15

Match the following:


(i) Root pressure	(A) Salting of meat
(ii) Plasmolysis	(B) Guttation
(iii) Xylem	(C) Stomata
(iv) Transpiration	(D) Water and salt

(i) – (C), (ii) – (A), (iii) – (D), (iv) – (B)
(i) – (B), (ii) – (A), (iii) – (D), (iv) – (C)
(i) – (A), (ii) – (C), (iii) – (D), (iv) – (B)
(i) – (C), (ii) – (D), (iii) – (B), (iv) – (A)

Answer

Correct Option: B

Description: Absorption by Roots - II
Number of Questions: 15
Created by: Sanjiv Memon
Tags: Absorption by Roots - II Absorption by Roots and Ascent of Sap Plant Water Relations

Absorption by Roots - 2

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