Podcast
Questions and Answers
What is an example of negative feedback in the menstrual cycle?
What is an example of negative feedback in the menstrual cycle?
- High levels of FSH delay ovulation.
- High levels of LH stop progesterone secretion.
- High levels of estrogen inhibit FSH secretion. (correct)
- High levels of progesterone make follicles more receptive to FSH.
Where are the target cells for the hormone leptin found?
Where are the target cells for the hormone leptin found?
- In the skeletal muscles
- In the hypothalamus (correct)
- In the liver
- In the glands that produce leptin
What is the resting state of the plasma membrane of an axon?
What is the resting state of the plasma membrane of an axon?
- The external surface is negative relative to the internal surface.
- The internal surface has a much higher concentration of potassium ions.
- The external surface is positive relative to the internal surface. (correct)
- There is no electric potential difference between the external and internal surfaces.
Which structural feature enables saltatory conduction in neurons?
Which structural feature enables saltatory conduction in neurons?
Which two hormones are likely secreted at insufficient levels in a female who is overweight, feels cold and tired, and often fails to ovulate?
Which two hormones are likely secreted at insufficient levels in a female who is overweight, feels cold and tired, and often fails to ovulate?
What is the primary function of leptin?
What is the primary function of leptin?
Which two hormones are involved in regulating blood sugar levels?
Which two hormones are involved in regulating blood sugar levels?
What is the primary role of the hormone leptin?
What is the primary role of the hormone leptin?
Which pituitary hormones regulate the human menstrual cycle?
Which pituitary hormones regulate the human menstrual cycle?
Which part of the diagram represents depolarization of the neuron?
Which part of the diagram represents depolarization of the neuron?
How does potassium move across the membrane of a neuron during repolarization?
How does potassium move across the membrane of a neuron during repolarization?
What process is blocked by neonicotinoid pesticides in insects?
What process is blocked by neonicotinoid pesticides in insects?
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