Which statement is not true? a. A cofactors is always a metal ion needed for an
ID: 871491 • Letter: W
Question
Which statement is not true?a. A cofactors is always a metal ion needed for an enzyme-catalyzed reaction to occur. b. The names of most enzymes end in the suffix -ase c. An enzyme-catalyzed reaction can be 10 6 to 10 12 times faster than a similar up catalyzed reaction d. Enzymes are proteins that serve as biological catalysts for reactions in all living organisms Which statement is not true?
a. A cofactors is always a metal ion needed for an enzyme-catalyzed reaction to occur. b. The names of most enzymes end in the suffix -ase c. An enzyme-catalyzed reaction can be 10 6 to 10 12 times faster than a similar up catalyzed reaction d. Enzymes are proteins that serve as biological catalysts for reactions in all living organisms Which statement is not true?
a. A cofactors is always a metal ion needed for an enzyme-catalyzed reaction to occur. b. The names of most enzymes end in the suffix -ase c. An enzyme-catalyzed reaction can be 10 6 to 10 12 times faster than a similar up catalyzed reaction d. Enzymes are proteins that serve as biological catalysts for reactions in all living organisms
a. A cofactors is always a metal ion needed for an enzyme-catalyzed reaction to occur. b. The names of most enzymes end in the suffix -ase c. An enzyme-catalyzed reaction can be 10 6 to 10 12 times faster than a similar up catalyzed reaction d. Enzymes are proteins that serve as biological catalysts for reactions in all living organisms
Explanation / Answer
answer : d. Enzymes are proteins that serve as biological catalysts for reactions in all living organisms
reason : proteins are made up of amino acids.proteins gives the structure, shape for living object but enzymes are biological catalysts.most of the enzymes in our body act as a catalysts.
for eg: uriase enzyme is very helpful in our body to hydrolysis urea. here uriase is not protein it is enzyme.
NH2CONH2 + H2O ----uriase --------------------> 2 NH3 + CO2
another most important enzyme carbonic anhydrase which contain Zn metal. this enzyme very helpful in the hydrolysis of CO2 due to this reaction the pH of blood maintain constantly.
CO2 + H2O ---carbonic anhydrase---------------------> H2CO3 ----carbonic anhydrase----------------> H+ + HCO3 -
remaining a,b, c are correct.
b) The names of most enzymes end in the suffix -ase
Eg: zymase, diastase, maltase
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