A substance that
speeds up a chemical reaction with being a reactant is called….
a) catalyst
b) enzyme
c) activator
d) all of theseABB
Which of the following are biological catalysts which increase the rate of chemical reaction in living cells?
a) hormones
b) enzymes
c) steroids
d) vitamins
The sum of all the chemical reactions that a cell or larger living thing carrying out is its……..
a) catabolism
b) anabolism
c) metabolism
d) biological reactions
Which of the following is incorrect about enzyme?
a) protein in nature
b) increase the activation energy
c) specific in action
d) decrease the activation energy
Enzyme Structure:
Enzymes are……and their function is determined by their complex structure.
a) proteins
b) carbohydrate
c) dinucleotides
d) lipids
