img091 - 38 Which one of the following is characteristic of...

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Unformatted text preview: 38. Which one of the following is characteristic of honnone-sensitive lipase’h” It is activated when VLDL levels are high. ' , 7 It is activated when glucagon levels increase. X It is activated as a consequence of high fat levels in the _bl d. ‘\ d. It is most active in the muscle. c. It is activated as a consequence oflow amino acid levels in the blood. 3% The Warm of B— oxid ' the fatty acyl CoA derivative in t " /a./ 3—hydroxyic23ybfi. WW 3-ket0acyl 0A. saturated fatty acyl CoA. xd./. trans-Az-enoyl/CeK. ‘ é / propionyl CoA. r ’< 40. Whic hof the following statements is FALSE concerning sterol metabolism? \ . LDL is metabolically derived from chylomicrons. U5 L D The formation of cholesterol from mevalonate involves the formation of i 3b” , famesyl pyrophosphate / f Apoprotein B (LDL) receptors facilitate the uptake of cholesterol into extrahepatic tissuesT'V y l Acetoacetyl CoA 1s a precursor for cholesterol biosynthesis. l The synthesis of apoprotein B (LDL) receptors is decreased when cellular cholesterol 4" is high. 143?? Triglycerides and phospholipids may have common precursors in each of the following, EXCEPT: K—\ a. glycerol 3-phosphate / b. diacylglyceroh/ I c. phosphatidic acid _/ .‘Qii fatty acyl CoA /é“.g) CDP- diacylglycerol / 42. Which of the following statements is TRUE concerning fatty acid B-oxidation? NAD is 1equired for the dehydrogenase used,nr the first step of / B— oxidation. /' A product of B-oxidation is acetyl CoA. ”c. Malic enzyme produces a required cofactor, NW / Camitine is a required cofactor in the oxidation of3-hydry/{fatty acyl CoA / in the mitochondrion. C02 is a required substrate in B~oxidation but is not consumed in the overall pathway. 43. Which ofthe following is a nutritionally non essential amino acid? \11 @ proline \i \ “xi/(l 4\/\ l” . lys/me/ threoni-n‘e d. legging e. methionine \/ ...
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