Q6

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Biology

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Jun 5, 2024

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Q6.1 38) A drug that maintains estrogen hormone levels in the blood between _________ will decrease oogenesis. 0.5 Points B and C C and D A and B D and E E and A Q6.2 Explain your reasoning for selecting the answer you chose above for Q6.1 0.5 Points You are not obligated to agree with your teammates on any answer. Be mindful not to plagiarize. Use your own words or reference your sources. Maintaining the estrogen levels between point D and E instead of decreasing it like normal would prevent transition to the menstrual phase and further prevent production of an oocyte. The uterine cycle would never reach the follicular phase and therefore would decrease oogenesis. Q6.3 39) Granulosa cells of the ovarian follicle produce high amounts of estrogen to stimulate _______, an example of positive feedback. 0.5 Points the transition from D to E the transition from B to C the transition from E to A the transition from A to B the transition from C to D Q6.4 Explain your reasoning for selecting the answer you chose above for Q6.3
0.5 Points You are not obligated to agree with your teammates on any answer. Be mindful not to plagiarize. Use your own words or reference your sources. The increased levels of estrogen lead to a spike in LH and FSH and eventually GnRH which further promotes estrogen forming a positive feedback loop. Point B to C reflects the increase in these hormones.
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Q7 2 Points [Question 41-46] The figure below shows a neuronal circuit. Neuron 1, Neuron 2, and Neuron 3 all synapse onto Neuron 4. Neuron 1 is myelinated and releases inhibitory neurotransmitter at the synapse with Neuron 4. Neuron 2 is unmyelinated and releases excitatory neurotransmitter at the synapse with Neuron 4. Neuron 3 is myelinated and releases excitatory neurotransmitter at the synapse with Neuron 4. When Neuron 4 is depolarized above threshold, it releases Glutamate from its axon terminal to the synaptic cleft of the next synapse with Neuron 5. Glutamate is an excitatory neurotransmitter. Without communication from the pre-synaptic neurons, all post-synaptic neurons will have no changes in membrane potential. Assume the axons of neuron 1, 2, and 3 have equal lengths and diameters. Resting membrane potential is -70 mV and threshold potential is - 55 mV. Assume normal extracellular and intracellular ion concentrations (see Question 7-13 table), unless otherwise indicated. Refer to the figure below to help you answer these questions.

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