56. Which nucleosides below contain both pyrimidines?
(A) A, T
(B) C, T, U
(C) C, G
(D) A, G, U

1. Chymotrypsin is a proteolytic enzyme acting in the digestive systems of many organisms. Which amino acid is NOT contained in the catalytic triad in chymotrypsin? (A) Lys (B) Ser (C) His (D) Asp

2. Which attribute of biological membrane is NOT correct? (A) Membranes consist mainly of lipids and proteins. (B) The constituent protein and lipid molecules are held together by covalent bond in the membrane. (C) Membranes are asymmetric. (D) Membranes are fluid structures.

3. Which molecule below is the key regulator of membrane fluidity in animals? (A) Glycolipids (B) Fatty acid (C) Integral membrane proteins (D) Cholesterol

4. Which description is NOT correct? (A) A nucleic acid consists of four kinds of bases linked to a sugar–phosphate backbone. (B) A pair of nucleic acid strands with complementary sequences can form a double-helical structure. (C) DNA is a structurally rigid molecule that only exist in a specific helical form. (D) Double-stranded DNA can wrap around itself to form a supercoiled structure.

5. Which of the following force does NOT exist in the quaternary structure of the protein? (A) Electrostatic interaction (B) Van der Waals force (C) H-bonds (D) Disulfide bond

6. What kind of protein secondary structure is silk (fibroin) made of? (A) α-helix (B) β-sheet (C) β-turns (D) Random coils

7. What type of inhibitor does penicillin belong to? (A) Competitive inhibition (B) Uncompetitive inhibition (C) Noncompetitive inhibition (D) Irreversible inhibitors

複選題8. Which enzyme reactions do NOT obey Michaelis–Menten kinetics? (A) Ping-pong reactions (B) Sequential reactions (C) Allosteric regulations (D) Double-displacement reactions

9. Which of the following is least likely to cross a cellular membrane without transporters or channels? (A) Inorganic ions (B) Larger uncharged polar molecules (C) Small uncharged polar molecules (D) Small nonpolar molecules

10. Which description is NOT correct? (A) Cyclic AMP stimulates the phosphorylation of many target proteins by activating protein kinase A. (B) Natrium ion is a widely used second messenger. (C) Activated G proteins transmit signals by binding to other proteins. (D) G proteins spontaneously reset themselves through GTP hydrolysis.

114年 - [無官方正解]114 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#132802

114年 - [無官方正解]114學年度學士後獸醫學系招生試題-生物化學#131167

114年 - [無官方正解]114 台灣綜合大學系統_學士班轉學生聯合招生考試：生物化學#129347

114年 - [無官方正解]114 國立臺灣大學_轉學生招生考試試題：生物化學概論#128196

114年 - 114 台灣聯合大學系統_碩士班招生考試試題_化學類：生物化學#126447

114年 - 114 國立成功大學_碩士班招生考試試題：生物化學#126226

114年 - 114 國立臺灣大學_ 碩士班招生考試試題：生物化學(C)#125975

114年 - 114 國立臺灣大學_ 碩士班招生考試試題：生物化學(A)#125974

114年 - 114 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)#125973

113年 - [無官方正解]113 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#136966