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-   -   What are peptide hormones? (http://www.molecularstation.com/forum/peptide-forum/26153-what-peptide-hormones.html)

Samantha W 10-27-2008 06:37 AM

What are peptide hormones?
 
A) chemically related to cholesterol
B) derived from the amino acid tyrosine
C) lipids
D) produced by the suprarenal glands
E) composed of amino acids

Dris 10-27-2008 01:37 PM

Re: What are peptide hormones?
 
Peptide hormones are signalling substances (hormones) that are peptides, i. e. that are assembled as a chain of amino acids.

Examples:

-Insulin
The peptide hormone insulin regulates the absorption of glucose in body cells. It has a glucose-lowering effect and plays an essential role in the treatment of diabetes mellitus. Insulin is the natural antagonist of the hormone
glucagon.

-Atrial natriuretic peptide (ANP)

-Human growth hormone (HGH)


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