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Keratin

Keratin

(Science: protein) a protein that is a primary constituent of hair, nails and skin.


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Re: Green mammals

... don't have green pigmentation either. All mammals, birds, reptiles, and amphibians produce the same two types of pigmentation, melanin amd keratin. The reason many birds, reptiles and amphibians appear green is due to a number of factors, usually having to do with optical phenomenon. The ...

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by biotag
Sat Sep 15, 2012 6:45 pm
 
Forum: Zoology Discussion
Topic: Green mammals
Replies: 11
Views: 14756

Please help with my work

... in the same ratio as water ( H20). b) Amino acids do not contain nitrogen c) Fish is a good source of protein and lipid,but not carbohydrate. d) Keratin is a protein found in egg white e) Amino acids are required to make fatty acids f) The biuret test indicates the presence of proteins g) Chewing ...

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by Olympic
Mon Jul 23, 2012 2:17 pm
 
Forum: General Discussion
Topic: Please help with my work
Replies: 6
Views: 8754

Re:

You'd need something that would reflect UV after being processed by the body AND something that would be deposited in with the keratin of the hair / nails. For instance, aspirin reflects UV but I doubt it would wind up in hair in any concentration. You might want to see if there are any ...

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by JoshuaFlynn
Mon Apr 09, 2012 7:43 pm
 
Forum: Human Biology
Topic: UV Reflective Staining
Replies: 9
Views: 6845

Human Hair DNA

... cells present in various layers. Eg the outside cuticle is made of flattened cells . Feughelman, Max Mechanical properties and structure of alpha-keratin fibres: wool, human hair and related fibres, Sydney, UNSW Press (1996) ISBN 0868403598 Did these cells ever have a nucleus containing DNA, which ...

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by pkc
Wed Apr 04, 2012 6:47 am
 
Forum: Human Biology
Topic: Human Hair DNA
Replies: 2
Views: 1872

UV Reflective Staining

... Which can include infections of the scalp, and therefore, hair. Tetracycline is also referenced as being UV reflective here: http://www.keratin.com/ab/ab016.shtml However, this only confirms there is indeed a problem, it does not specify what kind of problem it could be. I'm adding this ...

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by JoshuaFlynn
Thu Mar 15, 2012 10:31 pm
 
Forum: Human Biology
Topic: UV Reflective Staining
Replies: 9
Views: 6845
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