An activated enzyme consisting of polypeptide chain and a cofactor is called_______________?

Related Mcqs:

1. A cofactor made of inorganic ion which is detachable is called__________________?

   A. Prosthetic group
   B. Coenzyme
   C. Activator
   D. Cofactor

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. An antibody is made of _________ polypeptide chains?

   A. 1
   B. 2
   C. 3
   D. 4

4. Which of the following hormone is polypeptide in nature____________?

   A. Insulin
   B. Thyroxine
   C. ADH
   D. Cortisone

5. An insulin molecule consists of _________ polypeptide chains?

   A. 1
   B. 2
   C. 3
   D. 4

6. enzyme is_____________?

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

   Submitted by: Bari Baloch

7. 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

8. A three dimensional dcavity bearing a specific charge by which the enzyme reacts with its substrate is called_________________?

   A. Active site
   B. Binding site
   C. Catalytic site
   D. Allosteric site

9. 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

10. The enzyme which is secreted by salivary gland is?

    A. Pepsin
    B. Ptyalin
    C. Lactalase
    D. Bile

    Submitted by: zainab