PROTEINS

A protein is:• A. Polymer• B. macromolecule• C. Biomolecule• D. Organic molecule• E. All of the above

The monomer of proteins:

• A. Monosaccharide• B. Fatty acid• C. Nucleic Acid• D. Amino acid• E. none of the above

Every protein:• A,. Has a unique 3-d shape that

corresponds to a specific function• B. Has similar shape• C. Has a different shape but not 3-D• D. . Has a unique 3-d shape unrelated

to function

Proteins are important to:

• A. Structure of cell• B. Carrying activities• C. Energy source• D. Insulation• E. Both A and B

All are major classes of proteins EXCEPT:

• A. structural G. Enzymes• B. defense H. Signal• C. Contractile• D. Transport• E. storage• F. Energy

Proteins are made by linking:

• A. Nucleic acids together• B. Amino acids together• C. Fatty acids together• D. Monosaccharides together

There are ____ amino acids

• A. 10• B. 15• C. 20• D. 25• E. 30

All amino acids have a central carbon

• A. true• B. False

All amino acids have a carboxyl group

• A. true• B. False

All amino acids have an amino group

• A. true• B. False

All amino acids have a hydrogen attached to central

carbon:• A. true• B. False

Every amino acid has a different R group attached to central

carbon• A. true• B. False

What determines properties of amino

acids?• A. Carboxyl group• B. Amino group• C. Central carbon• D. Hydrogen• E. R-group

Amino acids are linked together:

• A. By process of dehydration synthesis• B. By removal of water• C. By covalent bonds• D. By peptide bonds• E. All of the above

Chain of amino acids called:

• A. Monosaccharide• B. polysaccharide• C. Polypeptide• D. Triglyceride• E. Dipeptide

What determines a proteins function?

• A. Its shape• B. Zack• C. Sam• D. Bryan• E. B, C, and D are correct

Denaturation• A. The linking together of amino acids• B. The breaking apart of amino acids• C. The unfolding of a protein• D. The breaking apart of a

polysaccharide

Denaturation is caused by all

EXCEPT:• A. High temperature• B. low temperature• C. High pH• D. Low PH• E. Salt concentrations

Since all organisms use the same 20 amino

acids to make their proteins

• A. Evidence for Cell Theory• B. Evidence For Evolution• C. Evidence from common ancestry• D. Evidence of relatedness among

species• E. B, C, and D