please help solve these questions?for part1

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doc12

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1. which of the following characterizes the generator potential of a receptor?
A... An all-or-none response
B...Propogated in nondecremental manner
C...Universally present in all nerves
D...Graded accrd to strength of the stimulus


3.the onset of action potential is caused by which of the following
A. A rapid but brief decrease in C1 shift
B. Equal but opposite movements of K+ AND Na+
C. A rapid but brief increase in Na+ conductance
D. A rapid but brief increase in K+ conductance

4. A 0.2mole/lt Nacl solutiona nd a 0.2 mol/lt glucose are separeted by a membrane
that is impermeable to the solutes but permeable to water.which of the following is
correct?
A. There will be no movement of water
B. Water will go from glucose to saline
c. water will go from saline to glucose
d. Conc of glucose will decrease
e. conce of Nacl will increase

5. In which of the following coonditions is oxygen partial pressure low in arterial blood
a. aneamia
b. polycythemia
c. pulmonary av shunt
d. hypovolumia due to heamorrhage

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