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2024 - Hormones and Neurons Quiz

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Questions and Answers

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?

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?

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?

Nodes of Ranvier between Schwann cells Signup and view all the answers

Which two hormones are likely secreted at insufficient levels in a female who is overweight, feels cold and tired, and often fails to ovulate?

Estrogen and thyroid hormones Signup and view all the answers

What is the primary function of leptin?

To initiate the process to reduce food intake Signup and view all the answers

Which two hormones are involved in regulating blood sugar levels?

Insulin and glucagon Signup and view all the answers

What is the primary role of the hormone leptin?

To inhibit appetite Signup and view all the answers

Which pituitary hormones regulate the human menstrual cycle?

FSH and LH Signup and view all the answers

Which part of the diagram represents depolarization of the neuron?

B Signup and view all the answers

How does potassium move across the membrane of a neuron during repolarization?

Facilitated diffusion Signup and view all the answers

What process is blocked by neonicotinoid pesticides in insects?

Binding of neurotransmitters to postsynaptic acetylcholine receptors Signup and view all the answers