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 |
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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 |
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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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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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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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