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NEET • BIOLOGY • TRANSPORT IN PLANTS
Transport in plants practice · Hard
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Hard
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Understanding
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Correct statement of the following with regard to active transport is?
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Correct option: D
All of these
Option D (All of these) is correct because active transport involves movement against the concentration gradient, utilizes carrier proteins called pumps, and is an uphill transport process.
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Understanding
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in
View answer and explanation
Correct option: A
Flaccid cell
Option A (Flaccid cell) is correct because in a flaccid cell, the pressure potential is zero, making water potential equal to solute potential ().
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Understanding
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Passive absorption of water is related to all, except
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Correct option: C
Development of a positive pressure in xylem
Option C (Development of a positive pressure in xylem) is correct because passive absorption of water is driven by transpiration pull, which creates tension (negative pressure) in the xylem, not positive pressure.
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Hard
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Application
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Two cells A, B are contiguous. Cell A has osmotic pressure 10 atom, turgor pressure 7 atm and diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure deficit 3 atm and diffusion pressure deficit 5 atm. The result will be?
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Correct option: A
Movement of water from cell A to B
Option A (Movement of water from cell A to B) is correct because water moves from a lower Diffusion Pressure Deficit (DPD) to a higher DPD. Cell A has a DPD of 3 atm, while Cell B has a DPD of 5 atm.
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Hard
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Understanding
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Which of the following is appropriate for mass-flow hypothesis?
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Correct option: D
All of the above
Option D (All of the above) is correct because transpiration pull, water absorption, and ion absorption are all related to the mass-flow hypothesis.
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Understanding
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in
View answer and explanation
Correct option: C
Turgid cell
Option C (Turgid cell) is correct because in a fully turgid cell, the pressure potential () is equal in magnitude but opposite in sign to the solute potential (), so the magnitude is equal.
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Hard
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Remembering
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A mature corn plant absorbs almost_____ of water in______
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Correct option: D
3 litres, a day
Option D (3 litres, a day) is correct because a mature corn plant absorbs approximately 3 litres of water in a day.
Revision notes and key takeaways
Review TRANSPORT IN PLANTS in your textbook or class notes, then use this set to check your understanding.
Showing 31-37 of 37 questions