BIOL 209 Assignment Nerve System Student Name: Only one correct answer to each q
ID: 148970 • Letter: B
Question
BIOL 209 Assignment Nerve System Student Name: Only one correct answer to each question. Bring a hard copy to class 1. Axons are found in theregion of a neuron. A) signal reception B) signal integration C) signal conduction D) signal conversion 2. A cell will most likely hyperpolarize whenent A) K B) Na C) Ca2 D) C ers into the cell. 3. If a cell is at rest (-70 mV) and ligand-gated Na+ channels open, there will be a net movement of Na+ into the cell until A) there are no more Na+ in the extracellular fluid. B) the other Na+ channels open. c) the membrane potential reaches the equilibrium potential for Na+. D) None of the above 4. The membrane potential becomes more negative than its resting membrane potential when the cell is A) depolarized. B) repolarized. C) hyperpolarized. D) None of the above. 5. Movement of Na+ through its channels is primarily responsible for the of an action potential. A) depolarization phase B) repolarization phase C) hyperpolarization phase D) after-hyperpolarization phase 6. A motor neuron is an example of a type of A) afferent neuron. B) efferent neuron. C) interneuron. D) sensory neuron.Explanation / Answer
Ans 1) Axon are found in the signal conduction region of a neuron
Option C.signal conduction
Ans 2) A cell will most likely to hyperpolarise when Cl- enter into the cell.
Option D) Cl-
Ans 3)
Option B. the other Na+ channels opens.
Option C. the membrane potential reahes the equilibrium potential for Na+
Ans 4) The membrane potential becomes more negative than its resting membrane potential when the cell is in hyperpolarized state.
Option C) hyperpolarized
5) The movement of Na+ through the channel is primary responsible for the depolarisation phase of an action potential.
OptionA) depolarisation phase
6) A motor neuron is an example of a type of efferent neuron.
Option B) efferent neuron.
Explain= Sensory neuron is called afferent neuron while motor neuron is called efferent neuron.
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