12. The final metabolic product of purine catabolism in human is
(A) NH₄⁺
(B) Xanthine
(C) Urea
(D) Uric acid

13. Which description about glucose metabolism in tumor is not true? (A) Cancer cells use energy-inefficient glycolysis under adequate oxygen supply. (B) GLUT2(Glucose transporter type 2) is a predominantly expressed isoform in most common cancers. (C) Conversion of pyruvate into lactate is markedly increased. (D) Aerobic glycolysis allows cancer cells to meet the requirements of generating enough ATP and biosynthetic precursors.

14. Which of the following is not true for TCA cycle in eukaryotes? (A) TCA cycle only occurs in the matrix of the mitochondrion. (B) One molecule of acetyl-CoA can produce two CO2. (C) One molecule of acetyl-CoA can produce five NADH. (D) One molecule of acetyl-CoA can produce one FADH2. (E) One molecule of acetyl-CoA can produce one ATP.

15. The proton pump in oxidative phosphorylation creates a gradient of protons across the inner mitochondrial membrane. What kind of energy is generated with such gradient? (A) Membrane energy (B) Kinetic energy (C) Potential energy (D) Protonic energy

16. Which of the following is not a product of $\beta$-oxidation of fatty-acids yielding acetyl-coA? (A) NADH (B) FADH2 (C) Malonyl-CoA (D) β-ketoacyl-CoA

17. Which is not the principal components of the plasma membrane? (A) Phospholipids (B) Triacylglycerols (C) Cholesterol (D) Sphingolipids

18. Which is the final electron acceptor in the electron transport chain? (A) Oxygen (B) complex IV (C) coenzyme Q (D) cytochrome C

19. What is Km? (A) The concentration of substrate at which $v=[S]$. (B) The amount of substrate consumed per unit time. (C) The point on the graph at which half the substrate has been consumed. (D) The substrate concentration at which $v=1/2$ Vmax.

20. Which steps in the glycolysis pathway are not reversible? ① enolase ② phosphofructokinase-1 ③ aldolase ④ glucokinase ⑤ pyruvate kinase (A) 245 (B) 234 (C) 125 (D) 345

21. Which of the following is a biological uncoupler of oxidative phosphorylation? (A) Antimycin A (B) Oligomycin (C) 2, 4-Dichlorophenoxyacetic acid (D) Thermogenin

22. Which of the following organelles is involved in protein glycosylation? (A) Endoplasmic reticulum (B) Nucleus (C) Mitochondria (D) Ribosome

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