chem 210 module 3 exam newest questions and answer
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CHEM 210 Biochemistry
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CHEM 210 Module 3 Exam Newest
1. Name three different functions of proteins. ANS Transport, hormones,
catalysis,structure, and protection
2. What function does a protease have? ANS catalysis. It degrades proteins.
3. What is the function of hormones? ANS These proteins communicate from
one cellto another
4. What are the functional groups common to all amino acids? ANS
amine andcarboxylic acid
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, 5. Briefly describe the five major groupings of amino acids. ANS The amino
acids are grouped into 1) nonpolar, aliphatic 2) nonpolar and aromatic 3) polar but
neutral,
4) acidic, and 5) basic.
6. What amino acid can form a disulfide bond? ANS Cysteine
7. Which amino acid is the only one to have its side chain connected to the
amine group? ANS proline
8. Consider the following pentapeptide ETYLVD.
Which amino acid is at the N terminal? Which is at the C terminal? ANS E is
at theN-terminal, and D is at the C-terminal.
9. Differentiate between protein tertiary structure and protein quaternary
structure. ANS Tertiary structure is the conformation or shape of a single
polypeptidechain. Quaternary structure is the orientation of multiple subunits.
10. Proteins typically adopt either a conformation that is fibrous or
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