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研究所、轉學考(插大)◆生物化學
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112年 - 112 國立臺灣大學_碩士班招生考試：生物化學( C )#117435
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12. Please describe how and why the oligosaccharide chains in glycoproteins can modify the protein structure and functions. (5%).
其他申論題
（二）說明什麼是零信任網路，並列舉三大核心機制。[１０分]
#501712
（一）遠距辦公時，哪類伺服器是攻擊者的主要目標？這攻擊將如何影響所有的使用 者？。[１０分]
#501713
（二）除伺服器風險外，請另外列舉三項風險簡要說明，並提出可能的解決方案。[１５ 分]
#501714
11. Please describe how PCR work and what happens if excess template DNA is used. (5%)
#501715
13. The key enzyme in a metabolic pathway is usually regulated in many ways. For example, HMG-CoA reductase in the biosynthesis of cholesterol can be regulated in transcriptional levels or protein levels. Please describe these regulations in general. (10%)
#501717
14. Describe the details of the 4 general types of "signal transducers" (or receptors). The cellular locations of these transducers/receptors are related to the chemical nature, bydrophilic or hydrophobic, of the ligands or signals. Please discuss this issue. (10%)
#501718
15. Please draw the molecular structure of the pentapeptide "PNSKV" in the two- dimensional representation of Fisher projection. (5%)
#501719
17. Please select (pick out) the aspartic proteases and cysteine proteases, respectively, from the enzymes listed below. (5%) (A) Alanine aminopeptidase, (B) Pepsin, (C) Caspase 1, (D) Renin, (E) Elastase, (F) Thrombin, (G) Trypsin, (H) HIV-1 protease, (I) Carboxy peptidase A, (J) Papain
#501720
18. Please desctibe how the muscle glycogen phosphorylase is regulated by the enzymatic cascades of reversible phosphorylation in response to the stimulation of glucagon. (5%)
#501721
19. Biochemists use equilibrium dissociation constant Kp to describe the binding affinity of a protein to its ligand and use Michaelis constant Km to describe the binding affinity of an enzyme to its substrate. What are the definitions of Ko and Km, respectively? (5%)
#501722
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