Number and distribution of stomata, Per cent of open stomata, water status of the plant, Canopy Structure, Temperature, light, Humidity, wind speed

How many factors are externally and internally affecting transpiration?

(1) 5,3

(2) 4,4

(3) 3,5

(4) 2,6

Subtopic:  Transpiration & Guttation |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Transpiration driven ascent of xylem depends on which of the following properties of water?

(1) Cohesion

(2) Adhesion

(3) Surface tension

(4) All of these

Subtopic:  Transpiration & Guttation |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Cohesion, adhesion and surface tension of water provides it

(1) High tensile strength

(2) High capillarity

(3) High transpiration pull

(4) Both A and B

Subtopic:  Transpiration & Guttation |
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Tensile strength is

(1) Mutual attraction between water molecules

(2) Attraction of water molecules to polar surfaces

(3) More attraction in water molecules in liquid phase than in gaseous phase

(4) An ability to resist a pulling force.

Subtopic:  Transpiration & Guttation |
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Cohesion is

(1) Mutual attraction between water molecules

(2) Attraction of water molecules to polar surfaces

(3) More attraction in water molecules in liquid phase than in gaseous phase

(4) An ability to resist a pulling force.

Subtopic:  Transpiration & Guttation |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Capillarity is not aided by

(1) Cohesion

(2) Adhesion

(3) Tensile strength

(4) Small diameters of the tracheary elements- the tracheids and vessels

Subtopic:  Transpiration Pull: Illustration |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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The forces which are generated in xylem by transpiration pull can cause lifting of water up to

(1) 110 metres

(2) 13 metres

(3) 130 metres

(4) 19 metres

Subtopic:  Transpiration Pull: Illustration |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Evaporation from the leaf at first sets up a pressure gradient between the

(1) Outside air and cytoplasm of cells of leaf

(2) Outside air and air spaces of the leaf

(3) Outside air and xylem cells of the leaf

(4) Outside air and palisade cells of leaf

Subtopic:  Transpiration & Guttation |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Which of the following is not a purpose of Transpiration?

(1) Absorption of minerals and water from the soil and transport in the plants

(2) Supplies water for photosynthesis

(3) Evaporative heating

(4) Maintains the shape and structure of the plants by keeping cells turgid

Subtopic:  Photosynthesis Transpiration Compromise & Mineral Translocation |
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Transpiration can cool the leaf surface up to

(1) 10 to 15 degrees

(2) Up to 70 degrees

(3) Up to 2 degrees

(4) Up to 50 degrees

Subtopic:  Photosynthesis Transpiration Compromise & Mineral Translocation |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Difficulty Level: