Given below are two statements 
Statement I: The greater is the concentration of water in a system, lower is its kinetic energy or water potential 
Statement II: Pure water will have the lowest water potential 
In light of the above statements, choose the most appropriate answer from the options given below 
1. Both Statement I and Statement II are correct 
2. Both Statement I and Statement II are incorrect 
3. Statement I is correct but statement II is incorrect 
4. Statement I is incorrect but Statement II is correct 

Subtopic:  Water Potential Concept |
 69%
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Given below are two statements: 
Statement I: Exudation of water droplets on the tips and edges of plant leaves is called guttation. It is caused by root pressure that forces more water to enter leaves than is transpired 
Statement II: Transpiration is a 'pulling' process, hence exploration of the rise of xylem sap by cohesion-tension mechanism begins not with roots but with leaves, where the driving force for transpirational pull begins 
In light of the above statements, choose the most appropriate answer from the options given below 
1. Both Statement I and Statement II are correct 
2. Both Statement I and Statement II are incorrect 
3. Statement I is correct but Statement II is incorrect 
4. Statement I is incorrect but Statement II is correct 
Subtopic:  Transpiration & Guttation |
 73%
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Given below are two statements:
Statement I: In the process of water movement in plants "root pressure" is responsible for pushing up water to a small height in the stem.
Statement II: "Root pressure" is responsible for the upward flow of water through the xylem.
In light of the above statements, choose the most appropriate answer from the options given below.
1.  Both statement I and statement II are true
2.  Both statement I and statement II are false
3.  Statement I is correct but statement II is false
4.  Statement I is incorrect but statement II is true
Subtopic:  Radial Transport |
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Given below are two statements
Statement I: The direction of movement of water and nutrients in xylem and phloem is unidirectional
Statement II: Sucrose is transported from the source to the sink via phloem
In light of the above statement, choose the most appropriate answer from the options given below 
1. Both Statement I and Statement II are correct 
2. Both Statement I and Statement II are incorrect 
3.  Statement I is correct but Statement II is incorrect 
4. Statement I is incorrect but Statement II is correct 
 
Subtopic:  Photosynthesis Transpiration Compromise & Mineral Translocation |
 78%
From NCERT
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A:  Waxy and cutin coating on plant parts reduce the transpiration.
R:  These adaptation are found in xerophytes.

In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1.  If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2.  If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3.  If Assertion is true statement but Reason is false, then mark (3)
4.  If both Assertion and Reason are false statements, then mark (4)
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Transpiration & Guttation |
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In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)

A: Water and mineral uptake by root hairs from the soil occurs through apoplast until it reaches endodermis.
R: Casparian strips in endodermis are suberized.
 
Subtopic:  Water Absorption | Pathways of Transport: Illustration |
 75%
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Assertion(A): In an angiosperm, there is a complex traffic of compounds moving in different directions.
Reason(R): PGR and other molecules are synthesized or absorbed by one organ and are required by another organ in plants.
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 |
 67%
From NCERT
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Assertion(A): Different proteins in the membrane play a major role in both active as well as passive transport.
Reason(R): Pumps can transport substances from a high concentration to a low concentration (‘uphill’ transport).
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 |
 67%
From NCERT
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Assertion(A): Diffusion takes place only along a gradient and does not use energy.
Reason(R): Proteins in the membrane are responsible only for active transport.
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:  Diffusion |
 74%
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Assertion(A): Pure water will always have zero water potential.
Reason(R): The greater the concentration of water in a system, the greater is its kinetic energy or ‘water potential’.
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 |
From NCERT
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