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, we analyze each option:

1. Option 1 (It occurs in an organism with cell walls when placed into a hypertonic environment): In a hypertonic environment, water leaves the cell (plasmolysis), so turgor pressure does not occur here. This statement is incorrect.
2. Option 2 (It is necessary to keep plants from wilting): Turgor pressure provides structural support to plant cells, preventing wilting. This is correct.
3. Option 3 (It is the force of water against the inside of the cell wall): By definition, turgor pressure is the hydrostatic pressure exerted by the cell sap against the cell wall. This is correct.
4. Option 4 (It is maintained by osmosis): Osmosis (water movement into the cell) helps maintain the water content that creates turgor pressure. This is correct.
5. Option 5 (It occurs in an organism with cell walls when placed into a hypotonic environment): In a hypotonic environment, water enters the cell, leading to turgor pressure as the cell wall resists expansion. This is correct.

Answer:

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