推 miao1985:musicz好像po過了耶... 140.112.192.2 06/29
→ POKERFACE:標題是不是有錯？蘇志明有生化專長嗎？ 140.109.40.6 07/22
課程名稱︰普通化學乙下
課程性質︰必修
課程教師︰蘇志明
開課系所︰心理系
考試時間︰2005/06/22
試題 :
1. Why are mitochondria called the "power plants" of the cell?
2. Put the following events in the correct order of their occurence:
electron transport, digestion, oxidative phosphorylation,
citric acid cycle.
3. (a) What is the chemical difference between ATP and ADP?
(b) Why is ATP sometimes called a high-energy molecule?
4. Look at the eight steps of the citric acid and answer these questions:
(a) Which steps involve oxidation reactions?
(b) Which steps involve decarboxylation (loss of CO2)
(c) Which step or steps involve a hydration reaction?
(d) How many NADH and how many FADH2 molecules are formed in the citric
acid cycle?
5. What are the two primary functions of the electron-transport chain in
mitochondria?
6. (a) What is a synapse, and what role does it play in nerve transmission?
(b) Describe in general terms how nerve impulse is passed fro one neuron
to another.
7. What are the two methods for removing the neurotransmitter once its job
is done?
8. For the following toxins, classify them either as agonist or antagonists,
and describe their roles and effects in the neuron transmision process.
(a) Botulinus toxin, blocks acetylcholine process.
(b) Black widow spider venom, release excess acetylcholine.
(c) Organphosphorus insecticide, inhibit acetylcholinesterase.
9. Explain how each of the following mechanisms regulates enzyme activities.
(a) Allosteric regulation.
(b) Covalent modification
(c) Inhibition
(d) Genetic control
10. (a) In enzymes, how does each of the three kinds of inhibitors mentioned
in the textbook work? What kind of bonds are formed between an enzyme and
these three kinds of inhibitor?
(b) What are the cofactors and coenzymes in functioning enzyme? Give one
examples for each case.
11. What is a zymogen? Why must some enzymes be secteted as zymogens?
--
啾 啾
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.112.240.84