BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 44, Problem 1U
Which of the following best describes hormones?
a. Hormones are relatively unstable and work only in the area adjacent to the gland that produced them.
b. Hormones are long-lasting chemicals released from glands.
c. All hormones are lipid-soluble.
d. Hormones are chemical messengers that are released into the environment.
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Which of the following best describes hormones?
a. Hormones are relatively unstable and work only in the area adjacent to the gland that produced them.
b. Hormones are long-lasting chemicals released from glands.
c. All hormones are lipid-soluble.
d. Hormones are chemical messengers that are released into the environment.
Which of the following statements about hormones is not correct?
A. The persistance of a hormone in the blood is usually of short duration.B. The time required for the onset of hormonal effects can vary
C. Organ responses to hormones occur as soon as receptors are bound.
D. The duration of hormone action is variable.
Which of the following correctly describes the functions of the endocrine system? a. Transport of blood through the body and through the lungs b. Regulation of body functions through hormone secretion c. Regulation of body functions through nerve impulses d. Immunity and returning extra tissue fluid to the blood vessels
Chapter 44 Solutions
BIOLOGY
Ch. 44.1 - Prob. 1LOCh. 44.1 - Prob. 2LOCh. 44.1 - Prob. 3LOCh. 44.2 - Prob. 1LOCh. 44.2 - Prob. 2LOCh. 44.2 - Prob. 3LOCh. 44.3 - Prob. 1LOCh. 44.3 - Describe the connections between the hypothalamus,...Ch. 44.3 - Prob. 3LOCh. 44.4 - Prob. 1LO
Ch. 44.4 - Describe the components of Ca2+ homeostasis.Ch. 44.4 - Prob. 3LOCh. 44.5 - Prob. 1LOCh. 44.5 - Prob. 2LOCh. 44.5 - Prob. 3LOCh. 44 - Prob. 1DACh. 44 - Prob. 1IQCh. 44 - Which of the following best describes hormones? a....Ch. 44 - Steroid hormones a. can diffuse through the...Ch. 44 - Second messengers are activated in response to a....Ch. 44 - Which of the following is true about lipophilic...Ch. 44 - An organ is classified as part of the endocrine...Ch. 44 - Hormones released from the pituitary gland have...Ch. 44 - Prob. 7UCh. 44 - You think one of your teammates is using anabolic...Ch. 44 - Your Uncle Sal likes to party. When he goes out...Ch. 44 - Prob. 3ACh. 44 - Prob. 4ACh. 44 - Prob. 5ACh. 44 - You experience a longer period than normal between...Ch. 44 - Mild vitamin D deficiency can lead to...Ch. 44 - How can blocking hormone production decrease...Ch. 44 - Suppose that two different organs, such as the...Ch. 44 - Many physiological parameters, such as blood Ca2+...
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- Describe how hormone receptors can play a role in affecting the size of the responses of tissues to hormones.arrow_forwardA hormone differs from a neurotransmitter in thata. hormones act extracellularly, whereas neurotransmitters act withinthe cell that synthesized them.b. hormones are released only by neurons, whereas neurotransmittersare released by many different types of cells.c. hormones cause only fast responses (seconds or less) to stimuli,whereas neurotransmitters cause slow responses (minutes to hours)to stimuli.d. hormones affect only epithelial cells, whereas neurotransmittersaffect only muscle cells.e. hormones are released into the bloodstream and can activate manycells in many parts of the body, whereas neurotransmitters arereleased by neurons and affect adjacent cells.arrow_forwardWhich of the following is true about lipophilic hormones? a. They are freely soluble in the blood. b. They require a transport protein in the bloodstream. c. They cannot enter their target cells. d. They are rapidly deactivated after binding to their receptors.arrow_forward
- Which of the following statements about steroid and non-steroid hormones is false?a. Non-steroid hormones typically act through second messengers such as cAMP.b. Non-steroid hormones are not lipid soluble and cannot enter the target cell.c. Steroid hormones act usually slower than non-steroid hormones.d. Cortisol and aldosterone are non-steroid hormones that are produced by the cortex of the adrenal glandarrow_forwardWhen a catecholamine or peptide hormone binds to receptors on the surface of a cell, A. The hormone is transported to the nucleus where it alters the activity of dna. B. The cell membrane becomes less permeable. C. The cell becomes inactive. D. A second messenger appears in the cytoplasm.arrow_forwardWhich type(s) of hormones are stored inside secretory cells until the appropriate signal stimulates their release? A. Lipophilic hormones B. Steroid hormones C. Both of the above D. Peptide hormonesarrow_forward
- What is the main difference between organizing effects and activating effects of hormones?A. Organizing effects are long-lasting, whereas activating effects are temporary.B. Organizing effects alter brain activity, whereas activating effects alter other parts of the body.C. Organizing effects are excitatory, whereas activating effects are inhibitory.D. Organizing effects depend on estrogens, whereas activating effects depend on androgens.arrow_forwardWhich of the following statements comparing the endocrine system and the nervous system is false? a. The endocrine system can reach almost all living cells. b. The endocrine system and the nervous system never interact with each other. c. Nervous system control is faster than endocrine control. d. Both systems can be considered as systems of communication.arrow_forwardWhich of these is not a means by which hormones are eliminatedfrom the circulatory system?a. excreted into urine or bileb. bound to binding proteinsc. enzymatically degraded in the blood (metabolism)d. actively transported into cellse. conjugated with sulfate or glucuronic acidarrow_forward
- Which of the following describes neurohormones? a. Hormones that affect nerve cell activity b. Hormones that inhibit nerve cell activity C. Hormones released into the blood by neurons d. Hormones released into the synaptic cleft by presynaptic neuronsarrow_forwardThe actions of lipid-soluble hormones include a. activation or inhibition of enzymatic pathways. b. binding with a hormone-responsive element. c. muscle contraction or relaxation. d. stimulation of cellular secretions.arrow_forwardHormone X appears to regulate the blood concentration of chemical Y via a negative feedback loop. a. Predict what happens to the secretion of hormone X when the blood concentration of chemical Y decreases. b. What effect will this likely have on the blood concentration of chemical Y?c. Predict what happens to the secretion of hormone X when the blood concentration of chemical Y increases.arrow_forward
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