What are the structural and functional differencesbetween direct and indirect pathways?
What are the structural and functional differencesbetween direct and indirect pathways?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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What are the structural and functional differences
between direct and indirect pathways?
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plasma membrane acts as a barrier for various molecules to move in and out of the cell , the cell’s internal composition is maintained by selectively permeable membrane. the phospholipid bilayer allow the diffusion of nonpolar molecules and is highly impermeable to charged , polar molecules.
The transport of molecules can take place either by diffusion or with the help of carrier or channel proteins. This transport can also take place by energy dependent and energy independent ways.
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