A substance which binds at the active site of the enzyme but does not result in the formation of the products is called________________?

Related Mcqs:

1. A chemical substance that reacts with enzyme but is not transformed into product and thus blocking active site is called__________?

   A. Substrate
   B. Co-factor
   C. Inhibitor
   D. Promotor

2. A chemical substance which can react (in place of substrate) with the enzyme but is not transformed into product/s and thus blocks the active site temporarily or permanently is called_______________?

   A. Co-enzyme
   B. Blocker
   C. Inhibitor
   D. Cofactor

3. The active site of an enzyme______________?

   A. Never changes
   B. Forms no chemical bond with substrate
   C. Determined by structure and the specificity of the enzyme
   D. They are non specific in their action

4. Active site of Rubisco is evolved to bind?

   A. CO2
   B. O2
   C. H2O
   D. All of these

    

5. A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called________________?

   A. Monosaccharide
   B. Fatty acid
   C. Neutral lipid
   D. Nucleic acid

6. If the concentration of enzyme is kept constant and amount of substrate is increased a point is reached where increase in substrates concentration does not affect the reaction rate because of____________________?

   A. Enzymes get denatured at higher substrate conc
   B. Rate of reaction is indirectly proportional to substrate concentration at this point
   C. All the active sites on enzyme molecule are occupied
   D. None of these

7. enzyme is_____________?

   A.bio catalyst
   B.hormone
   c. Gland
   D.None of these

   Submitted by: Bari Baloch

8. Which statement about enzyme is incorrect_________________?

   A. Some of them consist solely of protein with no non protein part.
   B. They catalyze a chemical reaction without being utilized.
   C. All enzymes are fibrous Proteins.
   D. They without their cofactor are called apoenzyme.

9. Inhibitors which block the enzyme by forming weak bond are called___________?

   A. Competitive inhibitors.
   B. Non-competitive inhibitors
   C. Irreversible inhibitors.
   D. Both a and b

10. Like enzymes , co enzyme can be used ?

    A. only once
    B. only few times
    C. again and again
    D. non of above

    Submitted by: Wajahat Amin