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

27. Aquaporin is a channel protein that functions as a transporter of water in and out of a cell and is located within the lipid bilayer of the plasma membrane. In human plasma, there is a large protein called albumin that circulates freely in blood vessels. Based on their physiological locations, what is the best statement to describe these two proteins?(A)Aquaporin has a more nonpolar core with a nonpolar outer layer, whereas albumin has a more polar core with a polar outer layer(B)Aquaporin has a more polar core with a polar outer layer, whereas albumin has a more nonpolar core with a nonpolar outer layer(C)Aquaporin has a more nonpolar core with a polar outer layer, whereas albumin has a more polar core with a nonpolar outer layer(D)Aquaporin has a more polar core with a nonpolar outer layer, whereas albumin has a more nonpolar core with a polar outer layer

28. If Golgi apparatus were damaged by a consumed chemical compound, what process would be most altered?(A)protein translation(B)protein glycosylation(C)alpha helix formation(D)beta-sheet formation

115年 - [無官方正解]115 亞洲大學_學士後獸醫學系招生試題：生物化學#145002

115年 - [無官方正解]115 國立清華大學_碩士班考試入學試題_生命科學暨醫學院甲組(生物與醫學科學組)﹕生物化學#142711

115年 - [無官方正解]115 國立臺灣大學_轉學生招生考試試題：生物化學概論#142642

115年 - 115 台灣聯合大學系統_碩士班招生考試_化學類：生物化學#139667

115年 - [無官方正解]115 國立臺灣大學_ 碩士班招生考試試題：生物化學(C)#137643

115年 - [無官方正解]115 國立臺灣大學_ 碩士班招生考試試題：生物化學(A)#137641

115年 - [無官方正解]115 國立臺灣大學_ 碩士班招生考試試題：生物化學(一般生物化學)#137622

115年 - 115 國立臺灣大學_ 碩士班招生考試試題：生物化學(B)#137619

114年 - [無官方正解]114 國立中興大學_碩士班招生考試試題_生物醫學研究所：生物化學#139094

114年 - [無官方正解]114 國立中正大學_碩士班招生考試試題_生物醫學科學系：生物化學#138415