Enzymes MCQs
Hello students, our today’s topic is ‘Enzymes’. Lots of reactions occur in the human body and it’s very interesting that someone controls these reactions. In 1833, a French chemist Anselme payen was the very first to discover and named ‘Enzyme’. Enzymes are substances or proteins or RNA.
The following MCQs will help you to know more about ‘Enzymes’.
MCQ.1): …………………………………………………………………. do speed up the rate of the biochemical reaction and are biological catalysts.
a) Enzymes
b) Deoxyribonucleic acid
c) Mitochondria
d) None of them
MCQ.2): In some cases RNA also acts as enzymes and it is called as …………………………………………………………….
a) A DNA
b) Ribozymes
c) Rhizom
d) tRNA
MCQ. 3): The ………………………………………………………………. Is the region where substrate, cofactors and prosthetic groups binds and contains residue that helps to hold the substrate.
a) Active site
b) Specific site
c) Amino acid residue
d) All of them
MCQ.4): How many types of active sites are there in enzymes?
a) One
b) Two
c) Three
d) Four
MCQ.5): Which is the non-protein molecule that carries out chemical reactions and unable to perform by 20 amino acids?
a) Enzymes
b) Proteins
c) Co-factors
d) RNA
MCQ.6): Which of the following is a tightly arranged organic cofactor?
a) Coenzymes
b) Prosthetic group
c) Inorganic factor
d) NAD+
MCQ.7): Which is a designated as an enzyme with its cofactor removed?
a) Apoenzyme
b) Riboenzyme
c) Holoenxyme
d) Akoenzyme
MCQ.8): In the cell, intracellular enzymes are synthesized and utilized in the cell for use of …………………………………………………………………….
a) Brain
b) Cell itself
c) Hepatic cell
d) Liver
MCQ.9): In the extracellular enzyme, digestive enzymes were produced by the pancreas but are not used by the ………………………………………………………….
a) Cell of liver
b) Cells of pancreas
c) Cells of duodenum
d) Cells of stomach
MCQ.10): Enzymes are sensitive to change ………………………………………………………………….
a) pH
b) Temperature
c) Substrate concentration
d) All of them
MCQ.11): A classification of enzymes which is systematic has been developed by …………………………………………………………………….
a) Internal Enzyme Center
b) International Enzyme Commission
c) Inter Enzyme Coordinator
d) International Enzyme Company
Answer
1) a) Enzymes
2) b) Ribozymes
3) a) Active site
4) b) Two
5) c) Co-factors
6) b) Prosthetic group
7) a) Apoenzyme
8) b) Cell itself
9) b) Cells of pancreas
10) d) All of them
11) b) International Enzyme Commission