Question

7- Oxidation of fatty acids occure in:

A. Mitochondria B. Endoplasmic reticulum C. Lysosome   D. Cell Membrane

8- End product of B-oxidation of fatty acid with even number of carbon atoms is:

A- a-keto glutarate   B- Propionyl CoA   C- Acetoacetyl CoA D- Acetyl CoA

9- How many ATP molecules produces from B-oxidation of palmitylCoA?

A.109             B. 129         C. 24           D. 38

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10- How many ATP molecules produces from one turn of B-oxidation ?

A- 109             B. 129         C. 5       D. 38

11- Dietary fats after absorption appear in the circulation as

(A) HDL       (B) VLDL     (C) LDL       (D) Chylomicron

12-Free fatty acids are transported in the blood

(A) Combined with albumin         (B) Combined with fatty acid binding protein

(C) Combined with β –lipoprotein         (D) In unbound free salts

13- Long chain fatty acids are first activated to acyl-CoA in

(A) Cytosol                (B) Microsomes      (C) Nucleus              (D) Mitochondria

14- Long chain fatty acids penetrate the inner mitochondrial membrane

(A) Freely                                          (B) As acyl-CoA derivative

(C) As carnitine derivative                  (D) Requiring Na dependent carrier

15- Atherosclerosis and coronary heart diseases are associated with the diet:

(A) High in total fat and saturated fat       (B) Low in protein

(C) High in protein                                   (D) High in carbohydrate

16- Activation of fatty acids requires all the following except

(A) ATP      (B) Coenzyme A     (C) Thiokinase      (D) Carnitine

17- During each cycle of β-oxidation

(A) One carbon atom is removed from the carboxyl end of the fatty acid

(B) One carbon atom is removed from the methyl end of the fatty acid

(C) Two carbon atoms are removed from the carboxyl end of the fatty acid

(D) Two carbon atoms are removed from the methyl end of the fatty acid

Answer 1