21. The rate of oxidative phosphorylation in mitochondria is controlled primarily by:
(A) feedback inhibition by CO₂.
(B) the availability of NADH from the TCA cycle.
(C)the concentration of citrate (or) the glycerol-3-phosphate shuttle.
(D)the mass-action ratio of the ATD-ADP system.
(E) the presence of thermogenin.

1.Which of the following is not reducing sugar? (A) Fructose (B) Glucose (C) Glyceraldehyde (D) Ribose (E) Trehalose

2. The reference compound for naming D and L isomers of sugars is: (A) fructose. (B)glucose. (C)sucrose. (D) ribose. (E) glyceraldehyde.

3. The alkaline hydrolysis of RNA does not produce: (A) 2' -CMP. (B) 2' ,3'-cGMP. (C) 2' - AMP. (D) 3' ,5' -cAMP. (E) 3' -UMP.

4. Chargaff's rules state that in typical DNA: (A) A =G. (B) A = C. (C) A = U. (D)T+C=G+A. (E) T +G=C+A.

5. The conversion of 1 mol of fructose 1,6-bisphosphate to 2 mol of pyruvate by the glycolytic pathway results in a net formation of: (A)1 mol of NAD+ and 2 mol of ATP. (B) 1 mol of NADH and 1 mol of ATP. (C) 2 mol of NADH and 4 mol of ATP. (D) 2 mol of NADH and 2 mol of ATP. (E) 2 mol of NAD+ and 4 mol of ATP.

6.fthe following substrates cannot contribute to net gluconeogenesis in man (A) Lysine (B) glutamate (C) alanine (D) pyruvate (E) a-ketoglutarate

7. Of the 20 standard amino acids, only____is not optically active. The reason is that its side chain______. (A)alanine； is a simple methyl group (B) glycine； is a hydrogen atom (C)glycine； is unbranched (D) lysine； contains only nitrogen (E) proline； forms a covalent bond with the amino group

8. Two amino acids of the standard 20 contain sulfur atoms. they are (A) cysteine and serine (B) cysteine and threonine (C) methionine and cysteine (D) methionine and serine (E) threonine and serine

9. Which of the following statements about aromatic amino acids is correct? (A) All are strongly hydrophilic. (B)Histidine's ring structure results in its being categorized as aromatic or basic, depe (C) On a molar basis, tryptophan absorbs more ultraviolet light than tyrosine. (D)The major contribution to the characteristic absorption of light at 280 nm by prot phenylalanine R group. (E) The presence of a ring structure in its R group determines whether or not an amino acid is aromatic.

10. The formation of a peptide bond between two amino acids is an example of a(n) ________reaction. (A)cleavage (B)condensation (C)group transfer (D) isomerization (E) oxidation reduction

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 - 114 國立高雄大學_研究所碩士班招生考試試題_生命科學：生物化學#137690

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