NEET Botany
Transpiration Guttation
Low Priority
Consistency: 10%
Weightage: 2 / 20 Yrs
High-Yield Trend
2
2023 1
2008 Questions 3 MCQs
01
PYQ 2008
easy
botany ID: neet-200
The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of:
1. lignified thick walls
2. cohesion and adhesion
3. weak gravitational pull
4. transpiration pull
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02
PYQ 2023
easy
botany ID: neet-202
Given below are two statements:
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.
| 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. |
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.
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03
PYQ 2023
medium
botany ID: neet-202
Match List I with List II:
Choose the correct answer from the options given below:
| 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 |
| 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 |
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