BIOLOGY CONNECT ACCESS CARD 1-SEMESTER
12th Edition
ISBN: 9781264019090
Author: Raven
Publisher: MCG/CREATE
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Chapter 9, Problem 1A
Summary Introduction
Introduction:
The steroid hormones are lipid soluble molecules that have the capability to cross the plasma membrane. The receptors for these hormones are located inside the cytoplasm of the cell (intracellular receptors).
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When a chemical signal binds to an intracellular receptor ...
a) ... it leads to the activation of G proteins.
b) ... causes the receptor-hormone complex to open or close ion channels.
c) ... the cell reacts faster than when a chemical signal binds to membrane-bound receptors.
d) ... it leads to the formation of mRNA.
e) ... the chemical signal is usually a large, water-soluble molecule.
If a cell were to have an unusually large response to cortisol, what effect would you expect to see?
A.
The cell would stop all protein synthesis.
B.
The cell would activate many kinases in the cytoplasm.
C.
The cell would greatly alter the mRNA being produced.
D.
There would be extensive changes to protein translation.
E.
Most G-proteins would become activated.
F.
Both B & E are correct.
G.
Both C & D are correct
which of the following happens when a therapeutic synthetic homone is introduced intno the body to treat patients natural hormone insufficiency?(select all that apply)
A. The target cell responds the same way as when the hormone is natural
B. the synthetic hormone has no effect on the target tissues
C. the amount of natural hormone produced by the patients body declines
D. the synthetic hormone is destroyed before it can have an effect on the target tissue.
Chapter 9 Solutions
BIOLOGY CONNECT ACCESS CARD 1-SEMESTER
Ch. 9.1 - Prob. 1LOCh. 9.1 - Prob. 2LOCh. 9.2 - Prob. 1LOCh. 9.3 - Prob. 1LOCh. 9.3 - Prob. 2LOCh. 9.4 - Prob. 1LOCh. 9.4 - Describe how information crosses the membrane in...Ch. 9.4 - Prob. 3LOCh. 9.4 - Prob. 4LOCh. 9.5 - Prob. 1LO
Ch. 9.5 - Prob. 2LOCh. 9 - Paracrine signaling is characterized by ligands...Ch. 9 - Signal transduction pathways a. are necessary for...Ch. 9 - The function of a ____is to add phosphates to...Ch. 9 - Which of the following receptor types is NOT a...Ch. 9 - How does the function of an intracellular receptor...Ch. 9 - Signaling through receptor tyrosine kinases often...Ch. 9 - Prob. 7UCh. 9 - Which of the following best describes the...Ch. 9 - Prob. 1ACh. 9 - The ion Ca2+ can act as a second messenger because...Ch. 9 - Different receptors can have the same effect on a...Ch. 9 - In comparing small G proteins like Ras and GPCR...Ch. 9 - Prob. 5ACh. 9 - The receptors for steroid hormones and peptide...Ch. 9 - Describe the common features found in all examples...Ch. 9 - The sheet of cells that form the gut epithelium...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- which of the following happens when a therapeutic synthetic hormone is introduced into the body to treat the patients natural hormone insufficiently? (select all that apply? A. the target cells respond the same way as when the hormone is natural B.the synthetic hormone has no effort on the target tissues C the amount of natural hormone produced by patients body declines D the syntheyic hormone is destroyed before it can have an effect on the target tissue.arrow_forwardEndocrine downregulation ... a) ... occurs in target cells that respond to hormones that are present in constant amounts in the blood. b) ... leads to the increased sensitivity of the target organ to the hormone. c) ... leads to a decrease in the number of receptors in the target cell. d)... occurs in part due to increased receptor synthesis in the target cell.arrow_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_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_forwardA hydrophilic peptide hormone is produced in the anterior pituitary gland located at the base of the brain. The hormone targets specific cells in many parts of the body. Which of the following best explains a possible mechanism that would enable the hormone to efficiently reach all the target cells in the body? A. Restate the question and record the right answer. B. Why is this the correct answer?arrow_forwardA hormone signals through a G protein- coupled receptor as shown in the diagram. After the production of IP3, which of these events will MOST quickly stop the transduction of the signal? A. the hydrolysis of IP3 B. the hydrolysis of GTP C. the hydrolysis of PIP2 D. the hydrolysis of the hormonearrow_forward
- How does the binding of a hormone to a receptor activate a G-protein? a. It replaces bound GDP with GTP. b. It’s magic. c. It replaces bound GTP for GDP. d. A and B. e. None of the above.arrow_forwardThe 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.arrow_forwardThe body produces a normal amount of testosterone. However, a particular cell you are studying has an unusually low number of testosterone receptors. How might the cell's response to testosterone be affected by its low number of testosterone receptors? A. The cell will activate more protein kinases in response to testosterone exposure than a cell with a normal number of testosterone receptors. B. The cell will make less mRNA in response to testosterone exposure. C. The cell will make less cAMP in response to testosterone exposure. D. The cell’s response to testosterone exposure will be identical to the response of a cell with a normal number of testosterone receptors.arrow_forward
- In their mechanism of action, a difference between steroid and nonsteroid hormones is that __________. nonsteroid hormones bind to DNA steroid hormones enter the nucleus of the target cell, and nonsteroid hormones do not nonsteroid hormones cross the plasma membrane more readily than do steroid hormones steroid hormones use a signal transduction pathwayarrow_forwardThe signaling molecules broadcast throughout the body by the endocrine system and used to control timing of developmental events are known as Group of answer choices A. hormones B. meristems C. nerves D. fast blocks E. morphogensarrow_forwardwhat happens when an agonist, instead of the endogenous (natural) hormone binds to the hormone recepters of a target. A. an antagonist is necessary to remove the agonist B. the agonist blockd any response in the target cell C. the cell responds by producing its own hormone D. transcription factors are blocked from binding to the promotor region E. the agonist has the same effect as the endogenous hormone.arrow_forward
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