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Chap 1 Notes
11
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Not Applicable
10/24/2007

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Term
What category is the reaction that joins the carboxyl group of one amino acid to the amino group of another amino acid?
Definition
Dehydration synthesis
Term
What are the nonpolar amino acids?
Definition
GAV LIP TMP

Glycine
alanine
valine

leucine
isoleucine
proline

tryptophan
methionine
proline
Term
What are the uncharged polar amino acids?
Definition
serine
tyrosine
threonine
aspargine
cysteine
glutamine
Term
What is the charge of amino acids with proton donors at physiologic pH?
Definition

negative

Term
What is the charge of amino acids with proton acceptors at physiological pH?
Definition
positively charged
Term
Which two amino acids are negatively charged at physiologic pH?
Definition
Glutamic acid and Aspartic Acid
Term
Which amino acids are positively charged at physiological pH?
Definition
1)  Histidine
2)  Lysine
3)  Arginine
Term
Which type of stereoisomers are used exclusively for protein synthesis?
Definition
L-configuration
Term
Which antioxidant is more prevalent in the peripheral retina, lutein or zeoxanthine?
Definition
Lutein is more prevalent in the peripheral retina, while zeaxanthine is more prevalent in the macula
Term
What buffer is present within the cell?
Definition
phosphate
Term
What buffer is mainly outside the cell?
Definition

bicarbonate buffer

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