Apparently _______________ is the source of energy for keeping stomata open.

1. photosynthesis

2. transpiration

3. ion transfer

4. sodium pump

Subtopic:  Stomata: 3 | Stomata |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Maintaining turgor pressure in guard cells requires an uptake of

1. K+

2. H+

3. ATP

4. CO2

Subtopic:  Stomata: 3 | Stomata |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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About _______________ % of the water taken in by roots is lost by transpiration.

1. 100

2. 98

3. 90

4. 60

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:


Essential ions except _______________ are
removed from the roots and relocated through the xylem.

1. phosphorus

2. potassium

3. nitrogen

4. calcium

Subtopic:  Photosynthesis Transpiration Compromise & Mineral Translocation |
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:


Guttation is:

1. movement of soluble organic materials through plants.

2. movement of water through the apoplast.

3. evidence of root pressure.

4. negative pressure created by transpiration.

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:


Stomata close when the guard cells:

1. lose water.

2. photosynthesis begins and the internal CO2 concentration decreases.

3. gain chloride ions.

4. become turgid.

Subtopic:  Stomata: 3 | 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:


The pathway of water from the soil through the plant to the atmosphere is best represented by which of the following sequences?

1. endodermis- cortex - epidermis - vessel elements - intercellular spaces in mesophyll - stomata.

2. epidermis - cortex - Casparian strip - endodermis - sieve cells - intercellular spaces in the mesophyll - stomata.

3. Casparian strip - root hairs - epidermis - cortex - xylem - endodermis - intercellular spaces in mesophyll - stomata.

4. root hairs - cortex - endodermis - vessel elements - intercellular spaces in mesophyll - stomata.

Subtopic:  Pathways of Transport: 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:


Which is an incorrect statement.

1. Translocation of minerals up the xylem is an active process

2. The target cells unload the minerals by an active process

3. The absorption of minerals by plants is mostly an active process

4. Minerals usually flow up the vessels along with the transpiration stream.

Subtopic:  Water Absorption |
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:


Which of the following terms would be used to explain how trees can lift water to heights of ten stories or more?

1. transpiration

2. adhesion and cohesion

3. tensile strength

4. all of the above

Subtopic:  Transpiration & Guttation |
Please attempt this question first.
Please attempt this question first.

Difficulty Level:


Which of the following will not cause the stomata to close?

1. wilting

2. increase in carbon dioxide concentration

3. darkness

4. increase in pH

Subtopic:  Stomata: 3 | Stomata |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level: