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April 27, 2015

Homework Help: Biochemistry

Posted by qwerty on Saturday, March 30, 2013 at 2:12am.

Amylase is secreted by your pancreas into your small intestine where amylase helps you digest the starches in your diet. Amylase does this because it is an enzyme, a protein that catalyzes a chemical reaction. In this case, amylase catalyzes the breakdown, or hydrolysis, of starch molecules into smaller molecules. Starch is a very long polymer of glucose molecules and the smaller fragments generated by amylase can then be further digested by other enzymes into individual glucose molecules. These glucose molecules are then absorbed into your blood and taken up by your body's cells.

a) The following amino acids are found in the protein amylase. For each set of amino acids, choose the one amino acid that answers the question.

Which amino acid is the most hydrophobic?

-Alanine
-Phenylalanine
-Aspartic acid

Which amino acid is the most hydrophobic?

-Lysine
-Aspartic acid
-Serine

Which amino acid has a side chain that can form hydrogen bonds with a suitable partner?

-Serine
-Glycine
-Alanine
-All of the above
-None of the above

Which amino acid has a side chain that can form ionic bonds with a suitable partner?

-Tryptophan
-Asparagine
-Serine
-All of the above
-None of the above

Which amino acid has a side chain that can form van der Waals bonds with a suitable partner?

-Tryptophan
-Asparagine
-Serine
-All of the above
-None of the above

Which amino acid has a side chain that is capable of forming disulfide bonds with a suitable partner?

-Serine
-Alanine
-Methionine
-Cysteine
-All of the above
-None of the above

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