Hw1_Extra_Practise

Hw1_Extra_Practise - Extra practice problems 1 1 Extra...

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Extra practice problems 1 1 Extra Practice Problems (for the extra practice problems, only abbreviated answers are given. Answeres are provided for quick check of your work and are not meant to be comprehensive) Extra Practice Problem #1 Given: how a dye stains depends on what property of the cell it exploits. Nissyl dye stains rough ER. Find a picture of a typical neuron in your textbook, copy it, and attempt to predict the portion of the neuron that will be stained by Nissyl dye. Explain why you shaded the picture the way you did. Extra Practice Problem #2 For this question use the chart below. permeability outside[] in [] Cl- 0.59 82 31 K+ 1 7 139 Na+ 0.2 82 94 Br - 0 0.2 0.5 other non-permeable ions for osmotic balance Which of the following statements is true (keep in mind you have just disabled the pumps)? (1) K+ will have a larger net flux across the cell membrane than Cl- (2) Cl- will have a larger net flux across the cell membrane than K+ (3) One cannot determine which leaks more readily with the information given (4) Both ions have the same net flux across the cell membrane. G. Explain your answer Extra Practice Problem #3 Use the concentrations and permeabilities from module 2.11 on the DelComyn CD. Assume the temparature is 0 degrees Celsius (the cell will not freeze, in fact many experiments are performed at this temperature). We will disable all pumps and immediately measure the net flux of ions. Under these conditions which of the following statements is true? (1) Na + will have a larger net flux across the cell membrane than Cl (2) Cl- will have a larger net flux per across the cell membrane than K + (3) One cannot determine which leaks more readily with the information given (4) Both ions have the same net flux across the cell membrane. Explain your answer Extra Practice Problem #4 For this problem, assume you are making all of your measurements at 17 degrees Celsius.
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Hw1_Extra_Practise - Extra practice problems 1 1 Extra...

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