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Elden [556K]
1 year ago
13

How do molecules like O2, CO2, and small hydrophobic molecules cross cell membranes?

Biology
1 answer:
ExtremeBDS [4]1 year ago
3 0

Answer:   Simple Diffusion Across the Cell (Plasma) Membrane

Explanation:

 pretty much the structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down their concentration gradient, by simple diffusion.

HOPE THIS HELPS!!

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D Xylem takes in water, sunlight and carbon dioxide and releases oxygen - this is false. Xylem does take in water, but not sunlight, carbon dioxide or oxygen

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Http://www.flashcardmachine.com/nutrition-exam33.html 
This I think definitely will help :)
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