Given below are two statements:
 
Statement I: The forces generated by transpiration can lift a xylem-sized column of water over 130 meters height.
Statement II: Transpiration cools leaf surfaces sometimes 10 to 15 degrees, by evaporative cooling.

In light of the above statements, choose the  most appropriate answer from the options given below :
1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II  are correct. 
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic:  Transpiration & Guttation | Photosynthesis Transpiration Compromise & Mineral Translocation |
 73%
From NCERT
NEET - 2023
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Movement and accumulation of ions across a membrane against their concentration gradient can be explained by: 
1.Active Transport2.Osmosis
3.Facilitated Diffusion 4.Passive Transport 
Subtopic:  Means of Transport: Active |
 72%
From NCERT
NEET - 2023
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Match List I with List II 
List I List II
A.  Cohesion I. More attraction in liquid phase
B. Adhesion II. Mutual attraction among water molecules
C. Surface tension III. Water loss in liquid phase
D. Guttation IV. Attraction towards polar surfaces

Choose the correct answer from the options given below: 

Options: A B C D
1. II I IV III
2. II IV I III
3. IV III II I
4. III I IV II
Subtopic:  Transpiration & Guttation |
 65%
From NCERT
NEET - 2023
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Identify the correct statements regarding Mass flow hypothesis.
A: Mass flow is faster than diffusion.
B: Mass flow is the result of pressure difference between the end points.
C: Different substances involved in mass flow move at different paces.
D: Mass flow can result through either a positive or a negative hydrostatic pressure gradient.
Choose the correct answer from the options given below:
1. (A), (C), (D) only 2. (B), (C), (D) only
3. (A), (B), (C) only 4. (A), (B), (D) only
Subtopic:  The Pressure Flow or Mass Flow Hypothesis |
 53%
From NCERT
NEET - 2023
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During symport, two different molecules move across the membrane:
1. in same direction with the help of different carriers located at a common site
2. in same direction with the help of different carriers located at different sites in the same cell
3. in same direction with the help of same carrier
4. in opposite direction with the help of same carrier
Subtopic:  Means of Transport: Passive |
 60%
From NCERT
NEET - 2023
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Given below are two statements:
I: The process of translocation through phloem is unidirectional but through xylem, it is bidirectional
II:  The most readily mobilized elements are phosphorus, sulphur, nitrogen and potassium.
In light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but Statement II is correct
2. Statement I is incorrect but Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic:  Phloem Translocation | Photosynthesis Transpiration Compromise & Mineral Translocation |
 69%
From NCERT
NEET - 2023
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Which of the following is not observed during apoplastic pathway?

1. Apoplast is continuous and does not provide any barrier to water movement.
2. Movement of water occurs through intercellular spaces and wall of the cells.
3. The movement does not involve crossing of cell membrane
4. The movement is aided by cytoplasmic streaming
Subtopic:  Pathways of transport |
 66%
From NCERT
NEET - 2022
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Addition of more solutes in a given solution will:
1. not affect the water potential at all
2. raise its water potential
3. lower its water potential
4. make its water potential zero

Subtopic:  Plant Water Relations: Water Potential: DPD |
 85%
From NCERT
NEET - 2022
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Which of the following statements above facilitated diffusion is incorrect? 

1.  Special proteins of the membrane help in this process 
2.  Porins are involved in this process
3.  Movement of the molecule occurs against the concentration gradient 
4.  ATP is not required for this process 

Subtopic:  Facilitated Diffusion |
 83%
From NCERT
NEET - 2022
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Phloem sap in the plants mainly consists of : 
1. fructose and water 
2. fructose and sucrose 
3. glucose and water 
4. sucrose and water 

Subtopic:  Phloem Translocation |
 78%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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