Microbiology - Enzyme Reaction
Exercise :: Enzyme Reaction - Section 1Enzyme Reaction - Section 1
16.
A substrate binds to its enzyme at a location called the __________ site.
A. coenzyme B. substrate C. active D. polypeptide
Answer: Option C
Explanation:
17.
Hydrogen and oxygen release enormous amounts of energy when they react. Yet, hydrogen and oxygen can be mixed together in a balloon and nothing will happen. Why?
A. Competitive inhibitors are blocking the reaction from occurring in the active site B. There must be contaminating elements in the balloon that prohibit the reaction from occurring C. The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance D. all of the above
Answer: Option A
Explanation:
18.
Adenosine triphosphate is a type of
A. fatty acid B. amino acid C. nucleotide D. steroid
Answer: Option C
Explanation:
19.
An enzyme that is always produced, regardless of the presence of substrates or the end products, is called
A. a constitutive enzyme B. an isoenzyme C. a repressible enzyme D. an allosteric enzyme
Answer: Option A
Explanation:
20.
About 7.3 kcal/mole are released when
A. glucose is converted to CO2 and H2 O B. NAD+ is reduced to NADH C. ATP hydrolysis is coupled to sucrose synthesis D. the terminal phosphate bond of ATP is broken by hydrolysis
Answer: Option A
Explanation:
