第一次
Question
1. Cell theory 2. Among the researching hotspot on cell biology,
which one are you most interested in and why?
第二次
What does ‘Confocal’ means exactly in confocal microscope?
2. Porins a. are peripheral membrane proteins. b. contain no hydrophobic amino acid residues. c. have many hydrophobic -helical regions. d. allow small water soluble molecules to pass through a membrane.
PRVAPAPAAPTPAAPAPAPSWPLSSSVPSQKTYQGSYGFRQuestionFra bibliotek第四次
1. Msp1 is a yeast protein with a single membrane-spanning domain. Which of the boxed domains is it? Why?
4. Propose a rationale for why the drugs ouabain could enhance the contraction of cardiac muscle.?
第六次 Question
1. During ATP synthesis, protons move “down” their electrochemical gradient through a. the F0 complex of ATP synthase. b. the F1 complex of ATP synthase. c. a proton channel protein. d. CoQH2–cytochrome c reductase. 2. NADH-CoQ reductase and CoQH2–cytochrome c reductase each use the energy
3. Which of the following statement(s) is (are) true of V-class proton pumps? a. They are ATPases. b. They are present in membranes of plant vacuoles. c They serve to decrease the pH inside a lysosome. d. all of the above
What is the difference between a cell strain,a cell line, and a clone?.
第三次
What the difference of southern, northern and western blot?
In 2D PAGE, you find a new protein appear, the following is one of sequence of the protein fragment, using BLAST to determine what might be the protein in human:
3. Glycolipids and glycoproteins are especially abundant in the a. nucleus. b. mitochondrial inner membrane. c. cytosol. d. plasma membrane.
4. What are the primary functions of the plasma membrane in all cells?
function of each protein complex and where is each found in mitochondria?
derived from electron transfer to transport ________ the mitochondrial matrix. a. four protons into b. two protons into c. four protons out of d. two protons out of 3. Transport of pyruvate into the mitochondrial matrix depends on energy provided by a. ATP hydrolysis. b. ATP synthesis. c. a Na+ gradient. d. the proton-motive force. 4. ATP synthase is composed of two oligomeric proteins, F0 and F1. What is the
第五次 Question
In which of the following drawings is the H+ ATPase shown in the correct orientation?
A)
D
)
C )
B)
E)
2. The major ATP-powered pump responsible for maintaining ion gradients across the plasma membrane of mammalian cells is a. the calmodulin-activated plasma membrane Ca2+ ATPase. b. the sarcoplasmic reticulum Ca2+ ATPase. c. the vacuolar F-class proton pump. d. the plasma-membrane Na+/K+ ATPase.