Question

which of the following is incorrect about turgor pressure? it occurs in an organism with cell walls when placed into a hypertonic environment. it is necessary to keep plants from wilting. it is the force of water against the inside of the cell wall. it is maintained by osmosis. it occurs in an organism with cell walls when placed into a hypotonic environment.

Explanation:

To determine the incorrect statement about turgor pressure:

1. Recall turgor pressure: It's the pressure of cell contents (water) against the cell wall in plants/fungi (with cell walls) due to water uptake via osmosis.
2. Analyze environments:

• Hypotonic environment: Water enters the cell (osmosis), leading to turgor pressure (cell becomes turgid).
• Hypertonic environment: Water leaves the cell (osmosis), causing plasmolysis (cell shrinks, turgor pressure decreases/lost).

1. Evaluate options:

• "It is necessary to keep plants from wilting": Correct (turgor supports plant structure).
• "It is the force of water against the inside of the cell wall": Correct (definition).
• "It is maintained by osmosis": Correct (osmosis drives water movement for turgor).
• "It occurs in an organism with cell walls when placed into a hypotonic environment": Correct (water enters, turgor builds).
• "It occurs in an organism with cell walls when placed into a hypertonic environment": Incorrect (hypertonic causes water loss, not turgor pressure).

Answer:

It occurs in an organism with cell walls when placed into a hypertonic environment.