Biology CLEP Prep Practice Exam

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What type of movement creates a net absorption of water?

  1. Osmosis

  2. Diffusion

  3. Active transport

  4. Bulk flow

The correct answer is: Osmosis

Osmosis is the process that creates a net absorption of water. This is because during osmosis, water moves from an area of lower concentration to an area of higher concentration. In other words, water will move from an area with a lower number of water molecules to an area with a higher number of water molecules. This results in a net absorption of water. On the other hand, diffusion, active transport, and bulk flow all involve the movement of substances from areas of higher concentration to areas of lower concentration. Therefore, they do not cause a net absorption of water.

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