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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
• A. true
• B. False
carbon
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