MDCAT Biology Chapter 7 Enzymes Online Test With Answers

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MDCAT Biology Chapter 7 Enzymes Online Test

Sr. # Questions Answers Choice
1 Which of the following helps in recognition of substrate Active site Catalytic site Binding site All
2 Slight change in pH can cause Denaturation Crystallization Ionization<span style="white-space:pre"> </span> All
3 Enzymes present in human body generally have Same optimum temperature and optimum pH Same optimum temperature but different optimum pH Same optimum pH but different optimum temperature Different optimum temperature and optimum pH
4 Which of the following kind of inhibitors don’t compete for active site of enzyme Irreversible competitive Reversible competitive Reversible non competitive Both b and c
5 The specificity of enzymes is due to their High molecular weight pH sensitivity Hydrogen bonding Surface configuration
6 Function of succinic dehydrogenase is aided by Metal ion Vitamin NAD FAD
7 Prosthetic groups are Radicals Inorganic molecules Organic molecules Metal ions
8
Phosphorylation of glucose molecule in glycolysis is carried out by
 ATPase Kinase Isomerase Transferase
9 Allosteric enzymes have ___ major sites 1 2 3 4
10 Potentially damaging enzymes are produced in Active form Inactive form Abundant quantity Minor quantity
11 Succinic acid differs from malonic acid by OH CH<sub>2</sub> CH<sub>3</sub> CHO
12 Succinic acid is the ____ of succinic dehydrogenase which undergoes____ Active site, reduction Prosthetic group, reduction Substrate, oxidation Substrate, reduction
13 Succinic acid dehydrogenase +succinic acid and high concentration of malonic acid? Maleic acid Fumaric acid No reaction Oxalic acid
14 Catalase and chymotrypsin have similar Substrate Product Optimum pH Metabolic impact
15 Which of the following is not affected by enzymes Nature and properties of end products Nature and properties of reactants Speed of biochemical reaction Efficiency of biochemical reaction
16 Ribozyme is found in Mitochondria Cytoplasm Lysosomes Ribosomes
17 The term enzyme was coined from a Greek word which means In yeast In grapes In apple In bacteria
18 Following enzymes are indicating the specificity of their action in their names, except Sucrase Amylase Pepsin Lipase
19 Which of the following is an example of ribozyme Aminopeptidase Pancreatic lipase Peptidyl transferase Cytochrome oxidase
20 Flavin adenine dinucleotide is a Prosthetic group Activator Coenzyme Inhibitor
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