Describe the exchange of substances across the capillary cell membrane?

Answer 1

Capillary exchange... You have a higher blood pressure and a lower osmotic pressure at the arteriole end of the capillary, this causes water to leave the capillary. The gases oxygen and carbon dioxide and nutrients like glucose and amino acids follow their concentration gradients and diffuse across the capillary membrane. At the venule end of a capillary your blood pressure is less than that of osmotic pressure and water returns to the capillary.

Hope this helped. I'm Looking for diagrams of this same thing. Any ideas?

Here is a website I found that might help out too.

http://www.mhhe.com/biosci/esp/2002_general/Esp/folder_structure/tr/m3/s10/trm3s10_2.htm

Answer 2

Substances exchange across the capillary cell membrane through processes like diffusion, osmosis, and active transport. Small molecules like oxygen and carbon dioxide can pass through freely by simple diffusion, while larger molecules may require specific transport proteins. Nutrients like glucose are transported into cells through facilitated diffusion, and waste products are removed from cells by diffusion or active transport.

Answer 3

They exchange substances across the membrane, either by simple diffusion or osmosis, or by active transport systems.