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WorksheetsBiochemistry Quiz
Total questions: 10
Worksheet time: 5mins
Which bond is responsible for the primary structure of proteins?
Hydrogen bond
Disulfide bond
Peptide bond
Ionic bond
The monomeric unit of nucleic acids is:
Amino acid
Nucleotide
Monosaccharide
Fatty acid
Which of the following is a purine base?
Cytosine
Thymine
Uracil
Adenine
The alpha-helix structure of proteins is stabilized mainly by:
Peptide bonds
Hydrogen bonds
Disulfide bonds
Hydrophobic interactions
Enzymes are mostly composed of:
Lipids
Carbohydrates
Proteins
Nucleic acids
The region of an enzyme where the substrate binds is called:
Allosteric site
Active site
Cofactor site
Regulatory site
Which factor does NOT affect enzyme activity?
Temperature
pH
Substrate concentration
Molecular weight of enzyme
An enzyme that requires a metal ion for its activity is called:
Isoenzyme
Apoenzyme
Metalloenzyme
Zymogen
Competitive inhibition can be overcome by increasing:
Enzyme concentration
Inhibitor concentration
Substrate concentration
Temperature
The Michaelis constant (Km) represents:
Maximum velocity of enzyme
Enzyme concentration
Substrate concentration at half Vmax
Turnover number
