Hormones with short half-lives
A. are usually lipid-soluble.
B. are maintained at relatively constant levels.
C. have concentrations that increase slowly.
D. regulate activities of delayed onset and long duration.
E. regulate activities of rapid onset and short duration.
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Question 2) The half-life of a hormone allows one to determine
A. the rate of hormone secretion.
B. the identity of a hormone.
C. the rate at which hormones are eliminated from the body.
D. the rate of action of a hormone.
E. the rate of travel through the blood to a target.
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Question 3) Given the following list of organic molecules, which includes hormones? 1) nucleic acid derivatives 2) polypeptides 3) steroids 4) proteins
A. 1, 3, 4
B. 1, 2, 3
C. 2, 3, 4
D. 1, 2, 3, 4
E. 1, 2, 4
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Question 4) Which of the following statements regarding hormone transport and distribution is FALSE?
A. Only free hormones can diffuse through capillary walls and bind to target tissues.
B. Hormones can be transported free in the plasma or bound to plasma proteins.
C. Plasma protein concentration has no influence on free hormone concentration.
D. Hormones bind only to certain types of plasma proteins.
E. All of the statements are true.
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Question 5) Lipid-soluble hormones can be more easily excreted once they have water-soluble molecules added to their structure in a process called
A. saponification.
B. amplitude-modulation.
C. conjugation.
D. protein-binding.
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Question 6) Members of which group of hormones are made from cholesterol?
A. amino acid derivatives
B. peptides
C. proteins
D. steroids
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Question 7) Which chemical class of hormone is more likely to need a binding protein for transport in the blood?
A. water-soluble
B. amino acid derivative
C. protein
D. lipid-soluble
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Question 8) Which chemical type of hormone has a longer half-life?
A. lipid-soluble
B. protein
C. water-soluble
D. amino acid derivative
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Question 9) What do all hormones have in common?
A. They are made from amino acids.
B. They are bound to transport molecules in the blood.
C. They bind to and interact with a receptor on or in the target cell.
D. They use the second messenger mechanism to control the target cell.
E. They are all lipid-soluble.
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Question 10) In general, the response of target cells to endocrine stimulation is _______ than their response to nervous stimulation.
A. faster and briefer
B. slower and more prolonged
C. more accurate
D. more restricted to a small area of the body
E. more intense
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