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Dictionary » F » Filtration

Filtration

Definition

noun, plural: filtrations

(1) The movement of water and solutes across the cell membrane due to hydrostatic pressure from the cardiovascular system.

(2) The process of separating suspended particles from the fluid through a porous material in which the fluid can pass while the suspended particles are retained.


Supplement

An example of filtration in the body is renal (ultra)filtration, a process in which the blood is filtered in the glomerulus of the kidney so that substances (e.g. cells and proteins) that are essential can be retained and selectively reabsorbed by the body.


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Re: Salt water fish

Reabsorption: When a substance that has been circulating in the body is taken up by the organs or cells. Filtration : The process of removing suspended particles from water by passing it through one or more permeable membranes

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by biology07
Fri Nov 07, 2008 5:12 am
 
Forum: General Discussion
Topic: Salt water fish
Replies: 4
Views: 465

Salt water fish

Hi all! I came across this question but not sure how to tackle it. I've provided ideas below. Q. Why is filtration rate of salmon increased and reabsorption rate decreased when it moves from seawater to fresh water? I have a feeling it has something to do with concentration ...

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by biology07
Fri Nov 07, 2008 4:08 am
 
Forum: General Discussion
Topic: Salt water fish
Replies: 4
Views: 465

Filtration

I am taking A & P one of my homework questions is: In terms of filtrartion, define selevtivity What would happen to the filtration rate if you were to apply pressure to the filtration system? What might happen to filtration if the water pressure damaged the membrane? How might this ...

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by hmoore
Fri Sep 05, 2008 4:57 pm
 
Forum: Cell Biology
Topic: Filtration
Replies: 1
Views: 847

Re:

... and one commercial reason why diatoms are important? Here are hints about the commercial side of diatoms : 1) Nobel+Dynamite 2) Oil prospection 3) Filtration Cheers, Dr D

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by DrD
Thu Jul 03, 2008 7:31 pm
 
Forum: Microbiology
Topic: why are diatoms classified as stramenopila?
Replies: 5
Views: 1425

Transport across a cell membrane - Dissolution?

... cell/tissues/systems etc... In this assignment, transport across a cell membrane had to be described - I used diffusion, osmosis, active & filtration - no probs there. My problem came with 'Dissolution' - This was described in one of my books for fatty substances too big to diffuse and ...

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by Donk
Mon May 12, 2008 11:19 pm
 
Forum: Cell Biology
Topic: Transport across a cell membrane - Dissolution?
Replies: 2
Views: 1210
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