Question

64. High levels of ketone bodies will raise blood pH resulting in metabolic alkalosis

A. The above statement is true

B. The above statement is false

65. Which of the following if deficient will result in impaired fatty acid oxidation?

A. Carnitine

B. Pantothenate

C. Carnitine acyltransferase I

D. All of the above

E. A and C only

66. Chylomicrons contain all of the following except:

A. Cholesterol

B. Cholesteryl ester

C. Albumin

D. Phospholipids

E. Apolipoproteins

67. Fatty acid biosynthesis takes place in the ____ and uses acetylCoA that is derived from _______.

A. Mitochondria; pyruvate

B. Mitochondria; beta-oxidation

C. Cytosol; beta-oxidation

D. Cytosol; pyruvate

E. Mitochondria; malonylCoA

68. Which lipid is generally not found as part of the structure of cell membrane?

A. Phosphatidyl Choline

B. Triacylglycerol

C. Cholesterol

D. Sphingomyelin

E. Phosphatidyl serine

Answer 1

64. (B) Statements is false :- In normal individuals, there's a continuing production of ketone bodies by the liver and their utilization by extrahepatic tissues. The ensuing terribly high levels of ketone bodies lower the pH of the plasma that reflexively triggers the kidneys to eliminate a very acid excreta.

65. (D) All of the above

66. (C) Albumin because Chylomicrons are made only in intestinal cells, whereas VLDLs are also synthesized in the liver. To form a chylomicron, triglycerides, fat-soluble vitamins, and cholesterol are coated with a layer of apolipoprotein (apo A and B types), cholesterol ester, and phospholipids.

67. D. Cytosol; Pyruvate :- Fatty acid synthesis is the creation of fatty acids from acetyl-CoA and NADPH through the action of enzymes called fatty acid synthases. This process takes place in the cytoplasm of the cell. Most of the acetyl-CoA which is converted into fatty acids is derived from Pyruvate via the glycolytic pathway.

68 . C. Cholesterol