Dictionary » N » Nanometer



One-billionth of a meter (10-9 m).

Abbreviation: nm A metric unit of length equal to one billionth of a meter.

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caveolae and caveolin1

1.caveolae which are a special type of lipid raft, are small (50–100 nanometer) invaginations of the plasma membrane in many vertebrate cell types, especially in endothelial cells and adipocytes. have several functions in signal transduction.[1] They are also ...

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by taruntbiotech
Mon May 14, 2012 5:10 pm
Forum: Cell Biology
Topic: caveolae and caveolin1
Replies: 1
Views: 4336

Biology Calculation-is this correct?

... 70% are localised within coated pits: work out how many coated pits there are. Ive got: 3,400 * 2% = 68 micrometers(squared) every pit has a 100 nanometer diameter. area of a circle 2*pi*r(squared) 100nanometers=0.1micrometer r=radius 2r=d r=0.05micrometers 2*pi*0.05(squared)=0.0157micromters(squared) ...

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by Kezzer
Sun Nov 28, 2010 4:49 pm
Forum: Molecular Biology
Topic: Biology Calculation-is this correct?
Replies: 5
Views: 3717

the difference between Viruses and Bacteria.

Viruses are tiny geometric structures that can only reproduce inside a living cell. They range in size from 20 to 250 nanometers (one nanometer is one billionth of a meter). Outside of a living cell, a virus is dormant, but once inside, it takes over the resources of the host cell ...

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by CXCR4
Wed Mar 11, 2009 8:43 pm
Forum: Microbiology
Topic: the difference between Viruses and Bacteria.
Replies: 13
Views: 141642

Re: Help me with this Biology home work? Anyone PLEASE!!!

... affect critical protein parts. 7. The unit of measurement that scientists use to determine the diameter of an animal cell is the A. millimeter. C. nanometer. B. micrometer. D. meter. 8. Which one of the following statements accurately describes an enzyme? A. It causes chemical reactions to occur ...

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by giselleposse
Tue Apr 15, 2008 9:29 pm
Forum: General Discussion
Topic: Help me with this Biology home work? Anyone PLEASE!!!
Replies: 34
Views: 31355

The replicator (first version of the selfish gene)

... problem here seems to be the use of "environment" as a global parameter, but changes in a molecule's environment can be just changes in nanometer-sized areas. Any variation in a thousand different environmental factors over tiny distances (or not-so-tiny distances) could affect the viability ...

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by Darby
Sat Sep 01, 2007 1:43 pm
Forum: Evolution
Topic: The replicator (first version of the selfish gene)
Replies: 12
Views: 6583
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