McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: All India Pre Medical Test (AIPMT) .
Chapters
| 101. |
What is co – enzyme? |
| A. | Always a protein |
| B. | always a amino acid |
| C. | Often a vitamin |
| D. | Often a protein |
| Answer» C. Often a vitamin | |
| 102. |
Find out the correct function of co-enzyme? |
| A. | In association with apoenzyme and make it effective |
| B. | Independently of the apoenzyme |
| C. | In association with any protein and make it effective |
| D. | None above |
| Answer» A. In association with apoenzyme and make it effective | |
| 103. |
Which one property is not true for enzyme? |
| A. | It effective for one reaction is not useful in another reaction |
| B. | It is amphoteric in nature |
| C. | All enzymes are bidirectional |
| D. | They are not destroyed |
| Answer» C. All enzymes are bidirectional | |
| 104. |
The rate of most of enzyme catalyzed reaction changes with PH as the PH Increases this rate? |
| A. | Reaches a maximum |
| B. | Reaches a minimum |
| C. | Decreases |
| D. | Increases |
| Answer» A. Reaches a maximum | |
| 105. |
Near freezing point an enzyme is |
| A. | Slightly activated |
| B. | Inactivated |
| C. | Denatured |
| D. | Destroyed |
| Answer» B. Inactivated | |
| 106. |
A temperature change from 30o
|
| A. | Increase |
| B. | Decrease |
| C. | First increase and then decrease |
| D. | First decrease and then increase |
| Answer» C. First increase and then decrease | |
| 107. |
An enzyme brings about |
| A. | Activation energy level |
| B. | Increase in reaction time |
| C. | Decrease in activation energy level |
| D. | all above |
| Answer» C. Decrease in activation energy level | |
| 108. |
Enzymes are polymers of: |
| A. | Fatty acid |
| B. | Phosphate |
| C. | Amino acid |
| D. | Nucleotides |
| Answer» C. Amino acid | |
| 109. |
Which one is not correct for enzyme? |
| A. | They all are biocatalysts |
| B. | They all are colloidal |
| C. | They all are proteins |
| D. | All proteins are enzymes |
| Answer» D. All proteins are enzymes | |
| 110. |
Inorganic catalyst recognized what when it attached an enzyme? |
| A. | Activator |
| B. | Co- enzyme |
| C. | Inhibitor |
| D. | Apoenzyme |
| Answer» A. Activator | |
| 111. |
At which place the substrate combines with the enzymes: |
| A. | Active site |
| B. | inactive site |
| C. | Common site |
| D. | Gap site |
| Answer» A. Active site | |
| 112. |
Fill it E + S ________ |
| A. | E-S |
| B. | E-S complex |
| C. | product |
| D. | enzyme |
| Answer» B. E-S complex | |
| 113. |
Enzyme and substrate complementary each other such as |
| A. | Pencil & eraser |
| B. | Pen & Paper |
| C. | Lock & key |
| D. | all above |
| Answer» C. Lock & key | |
| 114. |
Which one of the following chemical is classified as an enzyme? |
| A. | Try glyceride |
| B. | Cellulose |
| C. | Galactose |
| D. | Sucrase |
| Answer» D. Sucrase | |
| 115. |
In the cell digestive enzymes are mostly in which cell organells? |
| A. | Ribosome |
| B. | vacuoles |
| C. | Lysosomes |
| D. | Mitochondria |
| Answer» C. Lysosomes | |
| 116. |
Enzymes are named after their substrate adding suffix – |
| A. | —- In |
| B. | — ase |
| C. | — ose |
| D. | — on |
| Answer» B. — ase | |
| 117. |
The enzyme which removes hydrogen from the substrate is known as: |
| A. | Oxido-reductase |
| B. | Dehydrogenase |
| C. | Hydrogenase |
| D. | Hydrolyses |
| Answer» B. Dehydrogenase | |
| 118. |
The product is realized from which site of the enzyme? |
| A. | Simple site |
| B. | active site |
| C. | Complex site |
| D. | Inactive site |
| Answer» B. active site | |
| 119. |
What ‘A’ and ‘B’ indicates in the given figure (reaction)? |
| A. | A= ES complex B=S |
| B. | A=S B=E |
| C. | A= ES complex B=E |
| D. | A= EP complex, B=E |
| Answer» C. A= ES complex B=E | |
| 120. |
which of the following enzyme would correct glucose in to glucose-6-phosphate |
| A. | Hydrolyses |
| B. | Lyases |
| C. | Isomerases |
| D. | Trans ferase |
| Answer» D. Trans ferase | |
| 121. |
Glucose + ATP glucose – 6-phosphate +ADP which enzyme occur this reaction? |
| A. | Glucose isomerase |
| B. | Glucose oxidase |
| C. | Glucose dehydrogenase |
| D. | Hexokinase |
| Answer» D. Hexokinase | |
| 122. |
which enzyme would change glucose – 6 phosphate to fructose – 6 phosphate? |
| A. | Transferase |
| B. | Isomerase |
| C. | Lyases |
| D. | glucose phosphatase |
| Answer» B. Isomerase | |
| 123. |
which enzyme involved in hydrolysis of maltose to glucose? |
| A. | Synthetase |
| B. | maltase |
| C. | Galactose |
| D. | Lyases |
| Answer» B. maltase | |
| 124. |
the enzyme which also known as scissor? |
| A. | Lyases |
| B. | Ligarer |
| C. | Isomerases |
| D. | Trans ferasess |
| Answer» A. Lyases | |
| 125. |
which enzyme involved in conversion of a molecular in to an isomer? |
| A. | Lyases |
| B. | Synthetase |
| C. | Isomerase |
| D. | Transferase |
| Answer» C. Isomerase | |
| 126. |
The enzyme which break up fructose 1, 6 biphosphate in to fructose phosphates known? |
| A. | Aldolase |
| B. | Phosphatase |
| C. | Fructose phosphase |
| D. | Fructose |
| Answer» A. Aldolase | |
| 127. |
Which enzyme is needed to digest food reserve in pea seeds? |
| A. | Lipase |
| B. | Nuclease |
| C. | Proteases |
| D. | Amylase |
| Answer» C. Proteases | |
| 128. |
The best example of extra cellular enzyme is? |
| A. | Nuclease |
| B. | Digestive enzyme |
| C. | Dehydrogenase |
| D. | Lipase |
| Answer» B. Digestive enzyme | |
| 129. |
A non-protein component of enzyme is called? |
| A. | Co-factor |
| B. | Activator |
| C. | Co-enzyme |
| D. | Inhibitor |
| Answer» A. Co-factor | |
| 130. |
Which is an enzyme that joins acetic acid to Co A with the help of energy? |
| A. | Acetic acid co. A Synthetase |
| B. | Ligases |
| C. | Acetyl co. A Synthetase |
| D. | No one |
| Answer» C. Acetyl co. A Synthetase | |
| 131. |
Carbonic anhydrase is activated in the presence of which elements? |
| A. | Mb |
| B. | Mn |
| C. | Ca |
| D. | Zn |
| Answer» D. Zn | |
| 132. |
Vanadium is necessary for the activation of which enzyme? |
| A. | Kinase |
| B. | Maltase |
| C. | Nitrogenase |
| D. | Enolase |
| Answer» C. Nitrogenase | |
| 133. |
Find out the correct group of co. factor which is activated enolase? |
| A. | Mg, Co, Ca |
| B. | Mg, Mn, Zn |
| C. | Co, Ca, V |
| D. | Mn, Zn, V |
| Answer» B. Mg, Mn, Zn | |
| 134. |
Which one is not a co. Enzyme? |
| A. | NAD |
| B. | NADP |
| C. | FAD |
| D. | ADP |
| Answer» D. ADP | |
| 135. |
Find out the correct group of enzyme which is activated by calcium? |
| A. | Nitric oxide Synthetase, protein phosphatase , adenylkinase |
| B. | Acetyl co. A Synthetase, fructose isomerase protein phosphatase |
| C. | Succinic dehydrogenase, Cytochrome oxidase, Aldolase |
| D. | All above |
| Answer» A. Nitric oxide Synthetase, protein phosphatase , adenylkinase | |
| 136. |
Which of the following sets is not co enzyme? |
| A. | NAD, FAD, ATP |
| B. | NAD, NHDP,FMN |
| C. | Fe, Cu, Zn |
| D. | V, Ca, Mg |
| Answer» A. NAD, FAD, ATP | |
| 137. |
Co enzyme differs from prosthetic group because:- |
| A. | They deactivates the enzymes |
| B. | They do not attached with apoenzyme |
| C. | They attached apoenzyme with loosely bound |
| D. | They activates the enzymes |
| Answer» C. They attached apoenzyme with loosely bound | |
| 138. |
S: protein carry out many functions in living organisms
|
| A. | S&A are true but R is false |
| B. | S,A&R are true and R&A are the correct explanation of S |
| C. | S is true but A&R both are false |
| D. | S,A&R are true but R&A are not the correct explanation of S |
| Answer» B. S,A&R are true and R&A are the correct explanation of S | |
| 139. |
Most abundant organic compound on earth is [C.B.S.E.2001] [karnataka- 2000] |
| A. | Protein |
| B. | Cellulose |
| C. | Lipid |
| D. | Steroid |
| Answer» A. Protein | |
| 140. |
Which one is a simple protein? [Kerala 2004] |
| A. | Albumin |
| B. | Nucleoprotein |
| C. | Lipoprotein |
| D. | Glycoprotein |
| Answer» A. Albumin | |
| 141. |
Bond formed between the first phosphate group and adenosine in ATP is |
| A. | Nitrophosphate bond |
| B. | Adenophosphate bond |
| C. | Phosphoanhydride bond |
| D. | Phosphoester bond |
| Answer» D. Phosphoester bond | |
| 142. |
Nucleotides are building blocks of nucleic acids each nucleotide is a composite Molecule formed by [C.B.S.C. 2005] |
| A. | (base-sugar-phosphate)n |
| B. | base-sugar-OH |
| C. | base-sugar-phosphate |
| D. | sugar-phosphate |
| Answer» C. base-sugar-phosphate | |
| 143. |
Which one is not a nucleotide? [AFMC 1998] |
| A. | Adenine |
| B. | Guanine |
| C. | Thymine |
| D. | Lysine |
| Answer» D. Lysine | |
| 144. |
Which one is a molecule of ATP? [C.B.S.C. PMT 2000] |
| A. | Nucleosome |
| B. | Nucleoside |
| C. | nucleotide |
| D. | deoxyribose |
| Answer» C. nucleotide | |
| 145. |
t-RNA is a polymer of: [MP PMT 1997] |
| A. | Deoxyribonucleoside |
| B. | ribonucleoside |
| C. | Ribonucleotide |
| D. | deoxyribotide |
| Answer» C. Ribonucleotide | |
| 146. |
Which one is Purine base of RNA? [C.B.S.E. PMT 1996] |
| A. | Guanine |
| B. | Thymine |
| C. | Uracil |
| D. | Cytosine |
| Answer» A. Guanine | |
| 147. |
Enzymes are formed by conjunction of which molecule? [AFMC 1994] |
| A. | Fatty acid |
| B. | glucose |
| C. | amino acid |
| D. | carbon |
| Answer» C. amino acid | |
| 148. |
Co-enzyme means [B.H.U. 1997] |
| A. | Metal |
| B. | Vitamin |
| C. | Inorganic compound |
| D. | a & c both |
| Answer» B. Vitamin | |
| 149. |
Enzymes in boiling water [CPMT1995] |
| A. | Destroyed |
| B. | Denatured |
| C. | Uneffective |
| D. | Inactive |
| Answer» B. Denatured | |
| 150. |
Which one is the contractile protein [CBSE.PMT 1998] |
| A. | Collagen |
| B. | globular |
| C. | tropomycin |
| D. | keratin |
| Answer» D. keratin | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.