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Multiple Choice 1. The mechanisms of nerve impulse transmission include: a. Decrease in Na+ permeability → Repolarization → Na+...

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Medical Sciences

Multiple Choice

1. The mechanisms of nerve impulse transmissioninclude:

a. Decrease in Na+ permeability → Repolarization →Na+ influx stops → Depolarization

b.  Resting potential → Depolarization →Repolarization → Resting potential

c. Resting potential → Repolarization → Depolarization → Restingpotential

d. Myelinization of fibers → decrease action potential → restingpotential

2. An animal has a genetic mutation in the gene codingfor rhodopsin and phtopsin. What would be the phenotypic outcome ofthis particular animal?

a. the animal will have normal vision

b. The animal will have normal vision during the day but lack ofadaptation in dark conditions

c. The animal will have normal vision during the night but lackof vision in light conditions

d. The animal will have vision problems regardless of the lightor dark conditions

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Answer & Explanation Solved by verified expert
3.7 Ratings (695 Votes)
Ans 1 bResting potential Depolarization Repolarization Resting potential STEP 1 RESTING STATE A neuron is not conducting an impulse The potassium concentration is higher inside the cell than it is outside the cell The sodium concentration is higher outside the cell than inside    See Answer
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