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Osmosis involves movement of by diffusi...

Osmosis involves movement of _______ by diffusion across the membrane

A

neutral solutes

B

water

C

solution

D

water soluble

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Osmosis**: Osmosis is a specific type of diffusion that refers to the movement of water across a selectively permeable membrane. It is essential to recognize that osmosis specifically involves water, not solutes. 2. **Identifying the Movement**: In osmosis, water moves from an area of lower solute concentration (more water) to an area of higher solute concentration (less water). This movement occurs to balance the concentration of solutes on both sides of the membrane. 3. **Concentration Gradient**: The direction of water movement is determined by the concentration gradient of solutes. Water will always move towards the area where there are more solutes present. 4. **Conclusion**: Based on the definition and characteristics of osmosis, the blank in the question can be filled with "water". Therefore, the complete statement is: "Osmosis involves movement of water by diffusion across the membrane." **Final Answer**: Water ---
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