1 SEM ACC W/RAVEN CARDED
12th Edition
ISBN: 9781265486297
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 44, Problem 2U
Steroid hormones
a. can diffuse through the membrane without a carrier.
b. have a direct effect on gene expression.
c. bind to membrane receptors.
d. Both a and b are correct.
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The action of steroid hormones is different from that of peptide hormones becausea. peptide hormones must enter the cell to begin action, whereas steroid hormones must begin action on the external surface of the cell membrane.b. steroid hormones must enter the cell to begin action, whereas peptide hormones must begin action on the external surface of the cell membrane.c. peptide hormones produce a hormone receptor complex that works directly on the DNA, whereas steroid hormones cause the release of a secondary messenger that triggers enzymes.d. None of these answers is correct.
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Chapter 44 Solutions
1 SEM ACC W/RAVEN CARDED
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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- John is told that he has a hormone receptor problem and his cells are not responsive to hormone stimulation. Which of the following is a possible reason for his problem? Select one: A. He has an ectopic tumor. B. He has hypersensitivity to the hormone. C. He has a receptor that has been overstimulated. D. He has too many receptors for the hormone. E. He has antibodies that block the function of the hormone receptor. O O O Oarrow_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_forwardWhen a hormone binds to a nuclear receptora. DNA produces mRNA.b. G proteins are activated.c. the hormone-receptor complex causes ion channels to open or close.d. the cell’s response is faster than when a hormone binds to a membranebound receptor.e. the hormone is usually a large, water-soluble moleculearrow_forward
- A new antagonist molecule has been discovered that binds to and blocks plasma membrane receptors. What effect will this antagonist have on testosterone, a steroid hormone? a. It will block testosterone from binding to its receptor. b. It will block testosterone from activating cAMP signaling. c. It will increase testosterone-mediated signaling. d. It will not affect testosterone-mediated signaling.arrow_forwardWhich of the following statements about polypeptide hormones is false?a. They bind to receptors located on the cell membrane.b. Most of them are lipophilic.c. They are the most abundant class of hormones.d. They normally activate second messengers.e. They bind noncovalently to receptors.arrow_forwardFunctions of hormones include which of the following? a. control rates of certain chemical reactions b. transport substances across cell membranes c. help regulate water and electrolyte balances d. all of the abovearrow_forward
- When 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 of the following are components of intracellular enzyme cascades initiated by water-soluble hormones? a. G proteins . cAMP molecules c. protein kinase enzymes d. All of these are correct.arrow_forwardThe immediate effect of a steroid hormone on a cell is the: a. formation of cAMP. b. increase of enzyme-controlled intracellular reactions. c. transcription of RNA. d. activation of adenyl cyclase.arrow_forward
- Which of the following is a property common between endocrine hormones, paracrine hormones, and pheromones? A. They all operate internally within an organism to stimulate different cellular responses. B. They are all secreted by dedicated glands within the endocrine system. C. They are all water-soluble hormones D. Both A and B E. None of the abovearrow_forwardWhich of the following statements is truc a. Neurotransmitters must bind to a receptor to exert an action on a cell but hormones do not have to bind to a receptor to exert an action b. The nervous system effects are longer lasting than the endocrine system c. The nervous system effects are faster to respond than the endocrine system d. The nervous system releases neurotransmitters into the bloodstream similar to how the endocrine system releases hormones into the bloodstreamarrow_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
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