Enzymes With Answers

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Enzymes

Sr. # Questions Answers Choice
1 What is true about cofactors. Help facilitate enzymes activity Are composed of proteins Break hydrogen bond in proteins Increase activation energy
2 What is true about the optimun pH values of the followign enzyes of digestive system. Both work at high pH Both work at low pH Pepsin works at low pH while trypsin works at high pH Pepsin works at high pH while trypsin works at low pH
3 Which is true about enzyme. All enzymes are not protein All enzymes are proteins All proteins are enzyme All enzymes are vitamins
4 Whcih does consume energy Catabolism Metabolism Anabolism Both a and b
5 Whcih does yield energy. Anabolism Catabolism Metabolism None of these
6 The biochemical reactions in which larger molecules are broken down are called Metabolism Catabolism anabolism Mutualism
7 The biochemical reactions in which larger molecules are synthesized are called. Anabolism Catabolism Metabolism Digestive reactions
8 The biochemical reactions in which larger molecules are synthesized are called. Catabolism Metabolism Anabolism Digestive rections
9 Set of biochemical reactions that occur in living organisms in order to maintain life is called. Catabolism anabolism Metabolism Mutualism
10 What is TRUE . according to the induced fit model of enzyme action. Enzyme's active site change shape to bind the substrate. Substrate must fit the enzyme perfectly before binding No shape changes occur durring binding Enzyme is inactivated during the process.
11 An enzyme works best at a pH of 7.4. It is places in an acidic solution with a pH of 4.0.How will this affect the enzyme. The substrate will become inactive in an acidic environment the enzyme wil gain additional active sites The enzyme will catalyse reactions faster due to increased H ions The activ esite will be modified reducing substrate binding
12 How does competitive inhibitor affect enzyme action attaches with the substrate Changes enzyme shape Attaches and blocks the active site Blocks the cofactors
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