16. Carnitine acyltransferase is located in the mitochondrion within the

(A)intermembrane space

(B)outer membrane

(C)inner membrane

(D)matrix

17. Advantages of fatty acids as primary energy storage molecules include all these points except(A)they are more reduced than carbohydrates(B)they are hydrophobic in nature and can pack more efficiently in fat storage cells(C)they are more readily available for immediate metabolic needs(D)they contain more energy per gram than carbohydrates

18. A key intermediate in the catabolism of fatty acids with uneven numbers of carbon atoms is(A)malonyl-CoA(B)propionyl-CoA(C)oxaloacetate(D)phosphoenolpyruvate

19. A key intermediate in the formation of "ketone bodies" is(A)succinyl-CoA(B)methyl malonyl-CoA(C)propionyl-CoA(D)acetoacetyl-CoA

20. Of the processes listed below, which is not an important source of acetyl-CoA?(A)pentose phosphate pathway(B)amino acid degradation(C)glycolysis(D)fatty acid oxidation

21. Which amino acid would you find most likely in an integral protein embedded in the plasma membrane?(A)serine(B)arginine(C)glutamine(D)leucine

22. Which level of protein structure is stabilized mainly by hydrogen bonding?(A)primary structure(B)secondary structure(C)quaternary structure(D)Hydrogen bonding does not markedly affect the protein structure.

23. In the case of thioredoxin activation, which of the following sequences would be most disrupted?(A)Cys-Leu-Val-Tyr-Tyr-Thr(B)Val-Leu-Leu-Cys-Thr-Thr(C)Tyr-Cys-Cys-Thr-Val-Leu(D)All the peptides above would be equally affected

24. When we talk about “denaturation” in protein structure, what would be the best definition?(A)It happens primarily due to the changes in primary structure(B)It occurs due to the bindings of toxic compounds(C)It happens due to the disruption of non-covalent bonds(D)It happens due to the disruption of covalent bonds

25. The end product of an enzymatic reaction attenuates the formation of the product in an earlier step. What would be the best term to describe this enzymatic regulation?(A)feedback inhibition(B)non-competitive inhibition(C)allosteric regulation(D)competitive inhibition

26. A research group at NCHU has isolated “Protein S” from the wall of a human stomach. In order to learn how to synthesize stomach tissues in the lab, the researchers determined the sequences of amino acids of Protein S and created a functional mRNA template to translate Protein S in vitro. After several attempts, they were able to translate a correct copy of the polypeptide chain in the lab, however, it took several days for the protein to fold into its native structure. The scientists observed that many copies of Protein S were folded from polypeptide chains every minute in vivo. What is NOT a possible explanation for this difference in folding times?(A)The temperature in vitro is too low(B)The in vitro study lacks a functional tRNA molecule(C)The pH in vitro is too high(D)There is no key enzyme in the in vitro study

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