考古題上網

[karuwolf (卡魯狼喵喵叫)]

I. Multiple-choice questions (1.5 points each)
1. Which of the following amino acids can not be phosphorylated by protein
kinase?
(A)     serine
(B)     glycine
(C)     tyrosine
(D)     threonine

2. The main component of cell membrane is phospholipid. Which of the
following statements about phospholipid is not correct?
(A) Phospholipids have a backbone derived from glycerol.
(B) Phospholipids can spontaneously form bilayer structure in water.
(C)Every phospholipid molecule orients its polar head toward water and its
nonpolar tails away.
(D) Each fatty acid chain ending in a carboxyl group attaches to the backbone
by a phosphate group.

3. Carrier protein can perform facilitated diffusion. Which of the following
characters or factors does not affect the function of carrier proteins?
(A) ATP
(B) saturation
(C) specificity
(D) solute concentraion

4. Which of the following pairing is not correct?
(A) cadherin - actin
(B) integrin - microtubule
(C) gap junction - connexon
(D) cadherin - intermediated filament

5. The activity of sodium/potassium pump is related to the following
situations except
(A) ATP degradation
(B) ion binding affinity
(C) protein conformation
(D) ion concentration gradient

6. Which of the following signal molecules is related to Viagra
(A) NO2
(B) cAMP
(C) cGMP
(D) calcium

II. Fill-in questions (1.5 points each; English only)
1.      A sugar coating, _____ extends from the membrane on the outside of the
cell.

2.      Most membranes also contain steroid lipids such as______ which can
 change membrane fluidity.

3.      _______ is restricted to cells in the immediate vicinity of the
 releasing cell. It means the signals with short-lived and local effects.

4. The _____ molecules diffuse through the cytoplasm to the ER and bind to
the Ca++ channels.
III. Question: (10 points)
The symptom of cholera patient is serious diarrhea. Please describe the toxic
effect of cholera toxin on the related intracellular signaling pathway. And
also answer why sodium/glucose solution can be used to treat cholera patients

--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 140.112.241.229
推 Frank77:Cholera bacteria modified the G proteins of regulating
→ Frank77:salt and water secretion to stop the ability of GTP
→ Frank77:hydrolysis - patients die from the loss of water and
→ Frank77:salts 以上是申論題中霍亂弧菌的作用機制 在Ch11的講義
→ Frank77:中有提到 至於第二個問題..還沒找到XD
推 DOGBOY:你們查的差不多啦其實~~~
推 Frank77:可惜明天考出來的機率不大(既然都放到ceiba上了) 囧
→ Frank77:我覺得這份考題著重在第六章和第十一章
→ Frank77:Ch6-The tour of the Cell Ch11-Cell Communication
→ eagle7641:這是有理由的阿  笑
推 Frank77:anyway...希望這次也focus在這兩章上阿XDDD