3/22/25, 11:57
AM
BTEC APPLIED SCIENCE - UNIT 3 (ENZYMES) EXAM QUESTIONS
AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GRADED
A++
Practice questions for this set
Learn 1/7 Study using Learn
The change in concentration of a reactant or product per unit time at the start of the
reaction when t=0
Select the correct term
1Affinity of the enzyme for the substrate 2Initial rate of reaction
3Measuring rate of reaction
4Maximum velocity of the reaction
Don't know?
Terms in this set (22)
What are proteins made of? Polypeptide chains = amino acids linked together by peptide bonds
a chemical reaction in which two or more molecules (amino acids)
Condensation reaction
combine to produce & lose water
Dipeptide 2 amino acids bonded together by a peptide bond
Polypeptide A chain of many amino acids linked together by peptide bonds.
Enzymes proteins that act as biological catalysts
catalyst substance that speeds up the rate of a chemical reaction & not used up
What is an active site? a region on an enzyme that binds to a protein or other substance during a reaction.
what is an active site consist of? small n.o amino acids = form specific shape
why are active sites made of amino proteins secondary & tertiary structure
acids?
Regions of repetitive coiling (a-helix) or folding (b-pleated sheet) in
secondary structure
polypeptide chains due to hydrogen bonding between -NH & -C=O of
two amino acids
= three-dimensional due to interactions of the R groups of the amino acids
tertiary structure making up the chain. Involves; hydrophobic interactions, ionic bonds,
hydrogen bonds, and
disulfide bridges.
Substrate A specific reactant acted upon by an enzyme
1/
2
AM
BTEC APPLIED SCIENCE - UNIT 3 (ENZYMES) EXAM QUESTIONS
AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GRADED
A++
Practice questions for this set
Learn 1/7 Study using Learn
The change in concentration of a reactant or product per unit time at the start of the
reaction when t=0
Select the correct term
1Affinity of the enzyme for the substrate 2Initial rate of reaction
3Measuring rate of reaction
4Maximum velocity of the reaction
Don't know?
Terms in this set (22)
What are proteins made of? Polypeptide chains = amino acids linked together by peptide bonds
a chemical reaction in which two or more molecules (amino acids)
Condensation reaction
combine to produce & lose water
Dipeptide 2 amino acids bonded together by a peptide bond
Polypeptide A chain of many amino acids linked together by peptide bonds.
Enzymes proteins that act as biological catalysts
catalyst substance that speeds up the rate of a chemical reaction & not used up
What is an active site? a region on an enzyme that binds to a protein or other substance during a reaction.
what is an active site consist of? small n.o amino acids = form specific shape
why are active sites made of amino proteins secondary & tertiary structure
acids?
Regions of repetitive coiling (a-helix) or folding (b-pleated sheet) in
secondary structure
polypeptide chains due to hydrogen bonding between -NH & -C=O of
two amino acids
= three-dimensional due to interactions of the R groups of the amino acids
tertiary structure making up the chain. Involves; hydrophobic interactions, ionic bonds,
hydrogen bonds, and
disulfide bridges.
Substrate A specific reactant acted upon by an enzyme
1/
2
