Portage Learning / BIOD 102 /Biology II Module 3 Exam, Exams of Nursing

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Portage Learning / BIOD 102 /Biology II Module 3

Exam

Identify each neuron type based on its role:

1. connects information in the spinal cord
2. bicep contraction
3. conveys impulse regarding sharp pinch Your Answer:
4. interneuron
5. motor neuron
6. sensory neuron
7. connects information in the spinal cord: interneuron
8. bicep contraction: motor
9. conveys impulse regarding sharp pinch: sensory

Question 1 3 /^3 pts

Multiple Choice: / BIOD 102 /Biology II Module 3 Exam

Question 2 5 /^5 pts

Correct! 1 Dendrites Correct! (^2) Cell body Correct! (^3) Axon hillock Correct! (^4) Axon Correct! (^5) Synaptic terminals

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Portage Learning / BIOD 102 /Biology II Module 3 Exam

Portage Learning True or False. The resting membrane potential of neuron is - 70 mV. False

Question 5 2 /^2 pts

Multiple Choice: Electrical potential within a neuron is maintained by the opening and closing of: GPCR RTK The charge inside the neuron is relative to the outside which is . positive; negative Correct! (^) negative; positive equal Correct! Correct!

Question 4 3 /^3 pts

ion channels True

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Question 7 2 /^2 pts

Multiple Choice: Graded potentials that surpass the (^) neuron’s result in a depolarization event. graded potential shift / BIOD 102 /Biology II Module 3 Exam

Question 6 3 /^3 pts

(short answer) Describe the process of cellular depolarization. Your Answer: each stimulus incerases flow of na+ into cell then causes positive shift in the membrane, then an action potentional is formed. that one stimulus will cause depolarization that then reaches threshhold level. once threshhold is reached positive feedback loop is used and more sodium flows into teh cell which shifts membrane potential. Sodium channels open and sodium flows into the cell causing a more positive shift in membrane potential (+62mV), and an action potential is generated. Correct! (^) threshold

Portage Learning / BIOD 102 /Biology II Module 3 Exam 4/

Question 8 2 / 2 pts

Portage Learning / BIOD 102 /Biology II Module 3 Exam

Portage Learning / BIOD 102 /Biology II Module 3 Exam

Portage Learning / BIOD 102 /Biology II Module 3 Exam

Question 14 3 /^3 pts

1. chloride
   1. sodium
   2. chloride Correct! Fill in the blank. Neurotransmitter transport channels are present on the 1 , and inhibitory enzymes are present in the

Your Answer:

1. pre-synaptic cell
2. synaptic cleft

Question 13 3 /^3 pts

Multiple Choice: EPSP + EPSP + IPSP + IPSP + EPSP EPSP of postsynaptic cell. This principle is called. depolarization hyperpolarization summation

Portage Learning / BIOD 102 /Biology II Module 3 Exam

Portage Learning / BIOD 102 /Biology II Module 3 Exam

Portage Learning / BIOD 102 /Biology II Module 3 Exam