Question:
Diffusion of water into the protoplasm contributes to which component of water potential of plant cells?
Diffusion of water into the protoplasm contributes to which component of water potential of plant cells?
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Water potential: \(\Psi = \Psi_s + \Psi_p + \Psi_m + \Psi_g\).
Pressure potential = Turgor pressure.
Water uptake increases pressure potential.
Pressure potential = Turgor pressure.
Water uptake increases pressure potential.
Updated On: Sep 1, 2026
- Solute potential
- Pressure potential
- Matric potential
- Gravitational potential
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of water potential components in plant cells.
Step 2: Detailed Explanation:
Diffusion of water into the protoplasm increases the hydrostatic pressure inside the cell.
This contributes to the pressure potential (B) (\(\Psi_p\)).
Pressure potential is the physical pressure on the cell wall (turgor pressure).
Other components:
- Solute potential (A) (\(\Psi_s\)): Due to dissolved solutes.
- Matric potential (C) (\(\Psi_m\)): Due to surface forces (important in dry soils).
- Gravitational potential (D) (\(\Psi_g\)): Due to elevation.
Thus, water diffusion into protoplasm increases pressure potential.
Step 3: Final Answer:
Thus, diffusion of water contributes to pressure potential, which corresponds to option (B).
[0.5cm]
This question tests knowledge of water potential components in plant cells.
Step 2: Detailed Explanation:
Diffusion of water into the protoplasm increases the hydrostatic pressure inside the cell.
This contributes to the pressure potential (B) (\(\Psi_p\)).
Pressure potential is the physical pressure on the cell wall (turgor pressure).
Other components:
- Solute potential (A) (\(\Psi_s\)): Due to dissolved solutes.
- Matric potential (C) (\(\Psi_m\)): Due to surface forces (important in dry soils).
- Gravitational potential (D) (\(\Psi_g\)): Due to elevation.
Thus, water diffusion into protoplasm increases pressure potential.
Step 3: Final Answer:
Thus, diffusion of water contributes to pressure potential, which corresponds to option (B).
[0.5cm]
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