Select Chapter Topics:
Q. No.Assertion(A): The cell wall is freely permeable to water and substances in solution.
Reason(R): Plant cell wall is not a barrier to movement.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Membrane Transport |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): The pressure exerted by the protoplasts due to entry of water against the rigid walls is called pressure potential Ψp.
Reason(R): Due to rigidity of the cell wall, the cell does not rupture when placed in hypotonic solution.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Due to rigidity of the cell wall, the cell does not rupture when placed in hypotonic solution.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Water Potential Concept |
56%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): Imbibition of water in seeds is also diffusion.
Reason(R): Water movement in such cases is along a concentration gradient.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Water movement in such cases is along a concentration gradient.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Imbibition |
73%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): As water evaporates into the intercellular spaces or the atmosphere, tension develops in the continuous stream of water in the apoplast.
Reason(R): Mass flow of water occurs due to the adhesive and cohesive properties of water.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Mass flow of water occurs due to the adhesive and cohesive properties of water.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Transpiration Pull: Illustration |
57%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): Symplastic movement is slower than apoplastic movement.
Reason(R): During symplastic movement, the water has to enter the cells through the cell membrane.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): During symplastic movement, the water has to enter the cells through the cell membrane.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Phloem Translocation: Short Distance Transport |
87%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): Most of the water flow in the roots occurs via the symplast.
Reason(R): The cortical cells are loosely packed, and hence offer no resistance to water movement.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The cortical cells are loosely packed, and hence offer no resistance to water movement.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Pathways of Transport: Illustration |
73%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): Endodermis is impervious to water.
Reason(R): It has a band of lignified matrix called casparian strip.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): It has a band of lignified matrix called casparian strip.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Pathways of transport |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): During transpirational pull, water diffuses into the surrounding air.
Reason(R): There is lower concentration of water vapor in the atmosphere as compared to the substomatal cavity and intercellular spaces.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): There is lower concentration of water vapor in the atmosphere as compared to the substomatal cavity and intercellular spaces.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Transpiration Pull: Illustration |
89%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): We can not say categorically that xylem transports only inorganic nutrients while phloem transports only organic materials.
Reason(R): A small amount of exchange of materials does take place between xylem and phloem.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): A small amount of exchange of materials does take place between xylem and phloem.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Photosynthesis Transpiration Compromise & Mineral Translocation |
74%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): Food in phloem sap can be transported in any required direction so long as there is a source of sugar and a sink able to use that food.
Reason(R): The source-sink relationship is variable depending on physical and physiological conditions of the plant.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The source-sink relationship is variable depending on physical and physiological conditions of the plant.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Phloem Translocation |
85%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Chapter Topics:
© 2024 GoodEd Technologies Pvt. Ltd.