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Dictionary » M » Membrane

Membrane

Definition

noun, plural: membranes

(1) (biology) A thin layer of tissue covering a surface or lining a cavity, space or organ.

(2) (biology) A cell membrane.

(3) (chemistry) A thin pliable sheet of material that is permeable to substances in solution.


Supplement

A biological membrane functions by protecting the surface or bodily organ. It acts as a barrier against injurious substances. It also acts as a film or covering separating two regions. It may also connect structures or organs of an animal or a plant.


Word origin: Latin membrāna, skin, from membrum, member of the body.

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What does describe mean in this question?

Describe three substrates of mitotic Cyclin-Dependent Kinases (CDKs) associated with the reorganization of the nuclear membrane during mitosis. Explain how the phosphorylation of these proteins affects their function and cell progression through mitosis. I have found the three substrates ...

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by TToe
Mon Feb 18, 2013 10:33 am
 
Forum: Cell Biology
Topic: What does describe mean in this question?
Replies: 1
Views: 143

UWM is seeking testers for a new protein expression kit

... in expressing high-yield protein. To provide a brief overview, R. rubrum possesses the unique characteristic of forming an intracytoplasmic membrane (ICM) in response to membrane protein synthesis. The ICM is non-essential for growth and can incorporate foreign and over-expressed membrane ...

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by ejhuwmfdn
Thu Feb 14, 2013 3:05 pm
 
Forum: Molecular Biology
Topic: UWM is seeking testers for a new protein expression kit
Replies: 0
Views: 270

Refutation of Evolution theory

... about. We assume it originated in water since gas is too unstable and solid is too static. If so, the organism must be contained by some kind of membrane otherwise its precious contents will drift away in the water due to natural diffusion or drifting of water due to temperature variations in ...

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by caveman
Sun Jan 20, 2013 9:12 am
 
Forum: Evolution
Topic: Refutation of Evolution theory
Replies: 7
Views: 1132

How will conc. on 2 sides be equal when osmosis stops?

Osmotic balanc as explaind in texts has short comings. Osmotic balnc btw a NaCl solut on 1 side and intremediat wit a semi permaibl membrane,and d other ionizd H20. Water moves frm d hypo solvent i.e water 2 balance d hyper solute,resultin in a solution said 2 b balanced.presure is built ...

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by fitzkefas
Thu Dec 27, 2012 4:10 pm
 
Forum: Physiology
Topic: How will conc. on 2 sides be equal when osmosis stops?
Replies: 4
Views: 887

Re: biogenesis

That likely means the same as "production of the membrane proteins by a biological system".

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by jonmoulton
Wed Dec 19, 2012 9:55 pm
 
Forum: Molecular Biology
Topic: biogenesis
Replies: 2
Views: 364
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