Scientists take advantage of _______________ in studying translocation by phloem.

1. ants

2. aphids

3. bees

4. Mosquitoes

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

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What may be regarded as a valid difference between active and passive absorption of water?

1. Passive absorption is affected by the presence of metabolic inhibitors

2. active absorption is accelerated by the presence of auxins

3. Passive absorption is dependent on development of root pressure

4. Active absorption is dependent on aerial parts of plants for the development of a pull force.

Subtopic:  Means of Transport: Active | Means of Transport: Passive |
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NEET 2022 - Target Batch - Aryan Raj Singh

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What is never zero in a cell-

1. Solute potential

2. Water potential

3. DPD

4. Diffusion pressure

Subtopic:  Plant Water Relations: Reverse Osmosis & Water potential: 1 | Plant Water Relations: Reverse Osmosis & Water Potential |
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

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The amount of pressure needed to stop fluid from moving by osmosis into a solution is referred to as the

1. Osmotic pressure

2. water potential

3. pressure potential

4. solute potential

Subtopic:  Osmosis |
Please attempt this question first.
Please attempt this question first.

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In the absence of transpiration water moves up xylem because of

1. root pressure

2. turgor pressure

3. evaporation

4. high soil mineral concentration

Subtopic:  Ascent of Sap |
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Please attempt this question first.

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High root pressure can cause water to be lost by leaves through the process of

1. respiration

2. regurgitation

3. transpiration

4. guttation

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

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Ringing experiments prove all but

1. Food is translocated through phoem

2. Water is translocated through xylem

3. Leaves are the sinks of phloem transport

4. The phloem tissue can be regenerated if the cambium is intact.

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

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Loss of solutes from a cell leads to

1. Increase in water potential

2. Decrease in solute potential

3. Increase in pressure potential

4. All of the above

Subtopic:  Plant Water Relations: Water Potential: 2 | Plant Water Relations: Water Potential: DPD | Plant Water Relations: Reverse Osmosis & Water Potential |
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

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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

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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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