Why Can Water Diffuse Easily Through the Cell Membrane?

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SUMMARY

Water diffuses easily through the cell membrane due to the presence of specialized "gated" channels known as aquaporins, which facilitate the transport of H2O molecules. This discovery, recognized by the 2003 Nobel Prize in Chemistry, corrected the previous understanding that water passed solely through simple diffusion. The hydrophobic nature of the membrane restricts hydrophilic molecules, but aquaporins allow for efficient water movement across the membrane.

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  • Understanding of cellular membrane structure
  • Knowledge of hydrophilic and hydrophobic properties
  • Familiarity with aquaporins and their function
  • Basic principles of osmosis and diffusion
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  • Research the structure and function of aquaporins in detail
  • Explore the mechanisms of osmosis in cellular biology
  • Study the role of gated channels in membrane transport
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Cellular biologists, students studying biology, and professionals interested in membrane transport mechanisms will benefit from this discussion.

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i learned in my cellular biology class today that hydrophillic molecules don't diffuse through the membrane easily, since the inside of the membrane is hydrophobic. my question is that water easily diffuses through the cell membrane, and water isn't just hydrophillic, it is hydro! so why can water diffuse easily through the membrane?[?]
 
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The 2003 Nobel prize in chemistry was acutally given to an M.D. for the discovery of "gated" channels for H2O. For years we thought it was simple diffusion that water passed, but now we have found that there are channels. Quite simple, we should have always known this.

Nautica
 

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