Discuss (i) the role of diffusion in the movement of materials between body flui
ID: 3508624 • Letter: D
Question
Discuss (i) the role of diffusion in the movement of materials between body fluid compartments, (ii) including the seven features of diffusion that are relevant to physiologic transport. 1. Contrast mechanisms other than diffusion that are involved in the transport of material between body fluid compartments including: carrier-mediated transport, active transport, and vesicular transport. Explain how the phenomenon of saturation may be used to distinguish carrier- mediated transport from diffusion. 2.Explanation / Answer
The intracellular compartment is the system which includes all the fluids enclosed in the cell within the plasma membrane.
Extracellular fluid surrounds all the cells in the body.It has two compartment,the fluid component and the interstial fluid.
INTRACELLULAR FLUID:
The fluid volume is very stable because the amount of water In living cells is closely regulated.If the amount of water within the cell becomes low,the cytosol becomes too concentrated,if too much water enters the cell,the cell is destroyed.
EXTRACELLULAR FLUID:
In extracellular fluid gases,nutrients and waste material travel between capillaries and the cell through IF.Cells are separated from the IF by a selectively permeable cell membrane.
The moment if ions across the cell membrane to a region of higher concentration is called active transport.
A vesicular transport protein is the membrane protein which regulates the movement of specific molecules across vesicle membrane
Facilated diffusion is also called carrier mediated transport.
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