The pressure required to stop the movement of water completely into a cell is called

Options

A. Osmotic pressure
B. Turgor pressure
C. Diffusion pressure
D. Diffusion pressure deficit

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Concept**: The question asks for the specific term that describes the pressure needed to completely halt the movement of water into a cell. This concept is crucial in understanding how cells interact with their environment, particularly in terms of water movement.

2. **Identifying the Term**: The pressure that stops the entry of water into a cell is known as "osmotic pressure." This term is widely used in biology to describe the pressure needed to prevent water from moving into a cell due to osmosis.

3. **Explanation of Osmotic Pressure**: Osmotic pressure is the pressure required to counterbalance the osmotic movement of water into the cell. It is essentially the force that must be applied to prevent water from entering, thereby maintaining cell integrity and function.

4. **Evaluating Options**: If provided with multiple-choice options, we can identify that the correct answer is "osmotic pressure." Other terms like "turgor pressure," "diffusion pressure," and "diffusion pressure deficit" refer to different concepts and are not the correct answer to this question.

5. **Conclusion**: Therefore, the pressure required to stop the movement of water completely into a cell is called osmotic pressure.

**Final Answer**: Osmotic pressure.

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