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Pore

pore

1. One of the minute orifices in an animal or vegetable membrane, for transpiration, absorption, etc.

2. A minute opening or passageway; an interstice between the constituent particles or molecules of a body; as, the pores of stones.

Origin: F, fr. L. Porus, Gr. A passage, a pore. See Fare.


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Spontaneous formation of nuclear membrane

... In the case mitochondria and chloroplast, the double membrane is form spontaneously because they are produced from parent organelles. Do nuclear pore complex have any role in the case of nucleus?

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by josem
Sun Jun 22, 2014 1:14 am
 
Forum: Cell Biology
Topic: Spontaneous formation of nuclear membrane
Replies: 1
Views: 998

cellular mechanisms that result in symptoms of cholera

... epithelium cells. The A1 portion of the A subunit is an enzyme that ADP-ribosylates G proteins, while the A2 chain fits into the central pore of the B subunit ring. Upon binding, the complex is taken into the cell via receptor-mediated endocytosis. Once inside the cell, the disulfide ...

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by adithya528
Tue Dec 11, 2012 1:49 pm
 
Forum: Cell Biology
Topic: cellular mechanisms that result in symptoms of cholera
Replies: 4
Views: 5228

Compare and Contrast Active and Passive Transport?

... \passive transport does not. active transport takes place against conc.gradient\it takes place along the gradient. mol. enter through spcl.pore on the cell membrane \mol. enter along with the water flow via endosmosis.

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by super17
Sat Nov 10, 2012 7:49 am
 
Forum: Cell Biology
Topic: Compare and Contrast Active and Passive Transport?
Replies: 6
Views: 12373

Re: help please 1

... do they mean by granular in this case? - The protein lattice called the nuclear lamina- What do they mean by lattice in this case? - The nuclear pore complexes that perforate the nuclear envelope- What do they mean by perforate in this case? - Peroxisomes- They carry out a wide range of reactions ...

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by Stephen1993
Wed Feb 22, 2012 11:19 pm
 
Forum: Cell Biology
Topic: help please 1
Replies: 9
Views: 7262

Please Help with Homework (fairly easy questions)

... cell in a potato skin. C) 10. The boundary that surrounds the contents of the nucleus is the A) plasma membrane. B) nuclear envelope. C) nuclear pore. D) cytosol. B) 11. The smooth endoplasmic reticulum A) is the site for manufacture of lipids destined for other cellular compartments. B) produces ...

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by billyfisher100
Wed Feb 15, 2012 6:46 pm
 
Forum: General Discussion
Topic: Please Help with Homework (fairly easy questions)
Replies: 6
Views: 38081
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