Telegram group: T.me/BBCNOUN
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NSC108
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1. Aninhibitor that bind tightly to enzyme forming a covalent bond with its active site is

	      Competitive inhibitor

	      non-competive inhibitor

	      Un-competivite inhibitor

	--->> Irreversible inhibitor

2. An inhibitor that affect both the km and Vmax of an enzyme is

	      Competitive inhibitor

	      non-competive inhibitor

	--->> Un-competivite inhibitor

	      Irreversible inhibitor

3. A compound that bind to an exzyme but affect only the Km of the enzyme is

	--->> Competitive inhibitor

	      non-competive inhibitor

	      Un-competivite inhibitor

	      Irreversible inhibitor

4. Which of the following class of enzyme doesn’t participate in TCA cycle

	      transferase

	      oxidoreductases

	--->> hydrolases

	      Isomerases

5. Site on an enzyme that is bound to other compound but not the site of enzyme catalysis is called

	      Active site

	      Catalytic site

	--->> Regulatory site

	      Action site

6. Regulation of enzyme activity as a result of binding of more than one compound to the enzyme is associated with

	      Covalent modification

	--->> Allosteric control

	      protein-protein interaction

	      proteolytic cleavage

7. The regulation of enzyme activity by addition or removal of group is known as

	--->> Covalent modification

	      Allosteric control

	      protein-protein interaction

	      proteolytic cleavage

8. Proteins that require cleavage before thay becomes actives are

	      Allosteric enzyme

	      Protein-protein interaction

	      Isoenzymes

	--->> Proenzyme

9. Proteins catalysing the same reaction but found in different part of a cell is reffered to as

	      Allosteric enzyme

	      Protein-protein interaction

	--->> Isoenzymes

	      Proenzyme

10. The enzyme involved in the transfering of proteon from one compound to the other will most likely belong to enzyme class

	--->> I

	      II

	      III

	      IV