Transpiration can be studied by

(1) Cobalt chloride paper test

(2) Chromium chloride paper test

(3) Leaf enclosed in polybag

(4) Both A and C

Subtopic:  Transpiration & Guttation |
 77%
From NCERT
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The immediate cause of opening and closing of stomata is a change in the

(1) Turgidity of subsidiary cells

(2) Flexibility of aperture

(3) Change in the turgidity of guard cells

(4) All of these

Subtopic:  Stomata: 3 | Stomata |
 62%
From NCERT
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The inner wall of guard cell is not

(1) Thin

(2) Elastic

(3) Towards the pore or stomatal aperture

(4) All of these

Subtopic:  Stomata: 1 | Stomata |
 69%
From NCERT
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The opening of stoma is also…….due to the orientation of the microfibril in the …….

of guard cells.

(1) Supported, cytoplasm

(2) Supported, cell wall

(3) Affected, cell membrane

(4) Affected, cytoplasm

Subtopic:  Stomata |
 52%
From NCERT
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Microfibril of Guard cells of stoma are not

(1) Made up of Cellulose

(2) Oriented radially

(3) Makes it more easy for stoma to open

(4) Found in cytoplasm

Subtopic:  Stomata |
 77%
From NCERT
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When stomata is open

(1) Outer wall of guard cell is crescent shaped

(2) Outer wall is bulged out while inner wall is crescent shaped

(3) Outer wall is crescent shaped while inner wall is flat

(4) Outer wall is flat while inner wall is crescent shaped

Subtopic:  Stomata |
 82%
From NCERT
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When guard cells lose turgor due to…….the elastic …….regain its shape and guard cells become…..

(1) Water stress, outer wall and Turgid

(2) Toxic, Inner wall and Flaccid

(3) Toxic, Outer wall and Turgid

(4) Water stress, Inner wall and Flaccid

Subtopic:  Stomata |
 77%
From NCERT
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Transpiration is affected by external factors

Find the wrong one.

(1) Temperature, Light

(2) Humidity

(3) Wind Speed

(4) Canopy structure

Subtopic:  Transpiration & Guttation |
 78%
From NCERT
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Transpiration is affected by internal factors

Find the wrong one

(1) Number of stomata

(2) Water status of plant

(3) Percent of open stomata

(4) Wind speed

Subtopic:  Transpiration & Guttation |
 82%
From NCERT
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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 |
 73%
From NCERT
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