Proteins Quiz

What are proteins made up of?

• Carbon, Hydrogen, Oxygen, and Nitrogen

• Phosphorus, Sulfur, Fluorine, and Silicon

• Sodium, Potassium, Chlorine, and Magnesium

• Iron, Zinc, Copper, and Calcium

Which functional role do enzymes play in proteins?

• Regulate cellular processes

• Act as structural components

• Transport oxygen

• Catalyze chemical reactions

Which amino acid is an exception to containing a chiral carbon atom?

• Serine

• Valine

• Glycine

• Alanine

What is the primary function of basic amino acids?

• Positively charged

• Hydrophobic

• Negatively charged

• Uncharged

Which type of bond is responsible for the helical formation of proteins?

• S-S Disulfide bonds

• Peptide bonds

• Ion bonds

• Hydrogen bonds

What is the primary structure of a protein defined as?

• Sequence of amino acids linked together in a linear polypeptide chain

• Regular, recurring arrangements in space of adjacent amino acid residues

• Three-dimensional arrangement of the polypeptide chain

• Association of several protein chains into a closely packed arrangement

Which type of proteins give only amino acids upon hydrolysis?

• Primary-derived proteins

• Derived proteins

• Simple proteins

• Conjugated proteins

What is the process of breaking weak linkages within a protein molecule called?

• Oxidation

• Polymerization

• Hydrolysis

• Denaturation

Which function do antibodies serve in proteins?

• Storage

• Transport

• Catalytic

• Defense

What is the tertiary structure of a protein stabilized by?

• Formation of disulfide bonds

• Outside polar hydrogen and ionic bond interactions

• Hydrogen bonds between amide hydrogens and carbonyl oxygens

• Peptide bonds