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mezya [45]
3 years ago
13

Study the illustration. The small blue spheres represent water molecules.

Biology
2 answers:
xenn [34]3 years ago
8 0

Answer: Water will move from B to A.

Explanation:

In passive diffusion, the small water molecules can move across the phospholipid bilayer, seen in pink. This layer acts as a <em>semi-permeable membrane</em>; its hydrophilic heads are attracted to water (seen facing outwards) while its water-repellent hydrophobic tails face towards each other- allowing  molecules of water to diffuse across the membrane <em>down the concentration gradient. </em>

Thus the water will move from an area of high concentration (more blue dots) to an area of low concentration  (i.e. from B to A), until the system reaches a steady state called equilibrium- after  which, there will be no net movement of water. Similarly via osmosis, the water passes through the membrane due to the difference in <em>osmotic pressure </em>on either side of the phospholipid by layer this means that the water moves from regions of high osmotic pressure/concentration to regions of low pressure/ concentration to a steady state.

kherson [118]3 years ago
6 0

Answer:

Water will move from B to A

Explanation:

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