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 |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Transpiration is affected by external factors

Find the wrong one.

(1) Temperature, Light

(2) Humidity

(3) Wind Speed

(4) Canopy structure

Subtopic:  Transpiration & Guttation |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Transpiration is affected by internal factors

Find the wrong one

(1) Number of stomata

(2) Water status of plant

(3) Per cent of open stomata

(4) Wind speed

Subtopic:  Transpiration & Guttation |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

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 |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

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 |
 96%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

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 |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

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 |
 68%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

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 |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

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 |
 54%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

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 |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch