Midterm 1 Group Stage: Key Concepts in Neurobiology

Midterm 1 Group Stage (Part 1) Student Total Points 9.5 / 10 pts Question 1 Read these instructions (DO NOT SKIP)  Graded 0 / 0 pts + 0 pts Incorrect  + 0 pts Correct Question 2 ) (no title 1 / 1 pt 2.1 8) At the axon hillock, the number of open voltage-gated calcium channels at point c is higher than at point i. 0.5 / 0.5 pts  0.5 pts + Correct + 0 pts Incorrect 2.2 Explain your reasoning for selecting the answer you chose above for Q2.1 0.5 / 0.5 pts  + 0.5 pts Reasoning provided. + 0 pts No reasoning provided.

0.5 Question 3 ( ) no title 2 / 2 pts 3.1 14) The cells that express the growth hormone (GH) gene are this component of the homeostatic system. / 0.5 pts  + 0.5 pts Correct + 0 pts Incorrect 3.2 Explain your reasoning for selecting the answer you chose above for Q3.1 0.5 / 0.5 pts  + 0.5 pts Reasoning provided. 0 pts + No reasoning provided. 3.3 17) The hypothalamus releasing GHRH to stimulate GH release from the anterior pituitary is an example of _______ feedback. 0.5 / 0.5 pts  0.5 pts + Correct + 0 pts Incorrect 3.4 Explain your reasoning for selecting the answer you chose above for Q3.3 0.5 / 0.5 pts  + 0.5 pts Reasoning provided. + 0 pts No reasoning provided.

0.5 Question 5 (no title) 1 / 1 pt 5.1 29) Suppose the setpoint of thyroid hormone suddenly decreased. As a result, / 0.5 pts neurons in the hypothalamus would generate _________ action potentials.  + 0.5 pts Correct + 0 pts Incorrect 5.2 Explain your reasoning for selecting the answer you chose above for Q5.1 0.5 / 0.5 pts  + 0.5 pts Reasoning provided. + 0 pts No reasoning provided. Question 4 ) (no title 1 / 1 pt 4.1 24) Cells that express the ACTH receptor gene are this component of a homeostatic feedback loop. 0.5 / 0.5 pts  0.5 pts + Correct + 0 pts Incorrect 4.2 Explain your reasoning for selecting the answer you chose above for Q4.1 0.5 / 0.5 pts  + 0.5 pts Reasoning provided. + 0 pts No reasoning provided.

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0.5 Question 6 no title ( ) 2 / 2 pts 6.1 38) A drug that maintains estrogen hormone levels in the blood between _________ will decrease oogenesis. 0.5 / 0.5 pts  + 0.5 pts Correct + 0 pts Incorrect 6.2 Explain your reasoning for selecting the answer you chose above for Q6.1 0.5 / 0.5 pts  + 0.5 pts Reasoning provided. + 0 pts No reasoning provided. 6.3 39) Granulosa cells of the ovarian follicle produce high amounts of estrogen to stimulate _______, an example of positive feedback. 0.5 / 0.5 pts  0.5 pts + Correct + 0 pts Incorrect 6.4 Explain your reasoning for selecting the answer you chose above for Q6.3 0.5 / 0.5 pts  + 0.5 pts Reasoning provided. + 0 pts No reasoning provided.

0.5 Question 8 Participation of learning pod 1 / 1 pt  + 1 pt Complete + 0 pts Incomplete Question 7 ) (no title 1.5 / pts 2 7.1 41) If both Neuron 1 and Neuron 2 fire an action potential at the same time, Neuron 4 will _____ the post-synaptic potentials. / 0.5 pts  + 0.5 pts Correct + 0 pts Incorrect 7.2 Explain your reasoning for selecting the answer you chose above for Q7.1 0.5 / 0.5 pts  + 0.5 pts Reasoning provided. + 0 pts No reasoning provided. 7.3 A voltage-gated calcium channel agonist is administered at the synapse 44) between Neuron 1 and Neuron 4. The membrane potential of Neuron 4 ___________. 0 / 0.5 pts + 0.5 pts Correct  0 pts + Incorrect 7.4 Explain your reasoning for selecting the answer you chose above for Q7.3 0.5 / pts 0.5  0.5 pts + Reasoning provided. + 0 pts No reasoning provided.

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