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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Transpiration is affected by external factors

Find the wrong one.

(1) Temperature, Light

(2) Humidity

(3) Wind Speed

(4) Canopy structure

Subtopic:  Transpiration & Guttation |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level: