Chapter 16 part 1: Exam 5

Melatonin is secreted by the __________ to regulate the sleep/wake cycle.

Which of the following hormones are released in response to decreases in blood glucose concentration?

• Calcitonin

• Glucagon

• Parathyroid hormone

• Insulin

Tags

NGSS.HS-LS1-3

Match the hormone with its action: Erythropoietin, Melatonin, Leptin, Atrial natriuretic peptide (ANP)

• Increases red blood cell formation

• Promotes satiety

• Promotes sleep

• Decreases blood pressure

Testosterone is produced by the __________.

__________ is caused by the destruction of the insulin-producing beta cells of the pancreas by the immune system.

Tags

NGSS.HS-LS1-3

Which of the following hormones has intracellular receptors?

• Cortisol

• Insulin

• Epinephrine

What is the mechanism of action of lipid-soluble hormones?

• Activation of genes, which increases protein synthesis in the cell

• Phosphorylation of intracellular proteins

• Increasing protein kinases

After a lipid-soluble hormone is bound to its intracellular receptor, what does the hormone complex do?

• Acts as a transcription factor and binds to DNA, activating a gene

• Directly alters protein synthesis at the ribosome

• Activates a protein kinase

• Phosphorylates a protein

Which hormone's receptor is always bound to DNA, even when the receptor is empty?

• Cortisol

• Insulin

• Thyroid hormone

What keeps intracellular receptors from binding to DNA before a hormone binds to the receptor?

• Chaperone proteins (chaperonins)

• Transcription factors

• Receptors can't enter the nucleus until the hormone is bound to it