Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 8.4, Problem 1TYK
Summary Introduction
Introduction:
The steroid hormones are the biochemical compounds that are formed from cholesterol and are hydrophobic in nature. The steroid hormones are typically the corticoids that include mineralocorticoids, glucocorticoids, and sex corticoids. The examples include testosterone, estrogen, and progesterone.
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Chapter 8 Solutions
Principles of Biology
Ch. 8.1 - What is the signaling molecule in this example?Ch. 8.1 - Prob. 2CCCh. 8.1 - Prob. 3CCCh. 8.1 - A general reason for cell signaling is to respond...Ch. 8.1 - Prob. 2TYKCh. 8.1 - Prob. 3TYKCh. 8.2 - Prob. 1BCCh. 8.2 - Prob. 1TYKCh. 8.2 - Prob. 2TYKCh. 8.3 - Prob. 1CC
Ch. 8.3 - What has to happen for the a and subunits of the...Ch. 8.3 - Prob. 1TYKCh. 8.3 - After a G-protein-coupled receptor is activated,...Ch. 8.4 - Prob. 1TYKCh. 8.5 - Look ahead to Figures 13.9 and, in particular,...Ch. 8.5 - Prob. 1TYKCh. 8.5 - Prob. 2TYKCh. 8.6 - Prob. 1CCCh. 8.6 - Prob. 2CCCh. 8.6 - Prob. 3CCCh. 8.6 - Prob. 1TYKCh. 8.6 - Prob. 2TYKCh. 8 - Prob. 1TYCh. 8 - Prob. 2TYCh. 8 - Prob. 3TYCh. 8 - Prob. 4TYCh. 8 - Which of the following is not an example of a cell...Ch. 8 - Prob. 6TYCh. 8 - The EGF receptor functions as a receptor tyrosine...Ch. 8 - Prob. 8TYCh. 8 - Prob. 9TYCh. 8 - The benefit of second messengers in signal...Ch. 8 - Prob. 1CCQCh. 8 - Prob. 2CCQCh. 8 - Prob. 3CCQCh. 8 - Discuss and compare several different types of...Ch. 8 - Prob. 2CBQ
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- A hormone molecule binds to a receptor on a cell membrane. It doesnt enter the cell; rather, the binding activates a second messenger inside the cell that triggers an amplified response to the hormonal signal. Is the signaling molecule a steroid or a nonsteroid hormone?arrow_forwardWhich of the following best explains how hormone antagonists work? Multiple Choice By flooding the cancerous cells with hormones By blocking actions of hormones that the cancer cells need to function By competing with uracil or cytarabine and metabolizing the nutrients required for hormone production By inhibiting folic acid, which is essential for blood cell and hormone productionarrow_forwardWhich of the following binds to a cell surface receptor? testosterone estrogen cortisol ADHarrow_forward
- Describe intracellular receptors, using estrogen receptors as anexamplearrow_forwardWhich of the following statements about the half-life of hormones is correct? a) Hormones with a short half-life are present in relatively constant amounts in the blood b) Hormones with a short half-life regulate slow functions c) Fat-soluble hormones usually have a relatively long half-life d) Fat-soluble hormone is rapidly broken down by enzymes in the blood circulation e) Water-soluble hormones usually bind to plasma proteins (transport proteins)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_forward
- Under in vivo conditions, chronic treatment with a noncompetitive antagonist may lead to the up-regulation of the targeted receptor over time. True False Cytokines are peptides that are generally made in advance by specific types of cells, stored in vesicles, and act as autocrine or paracrine factors. True False Thyroid hormone is stored in an extracellular compartment. True Falsearrow_forwardGenerally, a cell that is affected by a particular steroid hormone would be expected to have ________. enzymes that are activated or inactivated by the hormone's second messenger a receptor inside the cell that binds the hormone a cell-surface receptor that binds the hormone DNA sites that interact with the hormonearrow_forwardSteroid hormones ______. bind to receptors in the cytoplasm or nucleus trigger a signal transduction pathway when they bind to a receptor bind to mRNA in the cytoplasm to initiate transcription all of the abovearrow_forward
- Which of the following occurs when a hormone binds to an intracellular receptor? a) Activation of cAMP b) Activation of genes c) Altered enzyme activitiesarrow_forwardWhich of the following terms refers to a hormone interaction that makes the target cell responsive to or more responsive to a second hormone? Group of answer choices Antagonistic Additive Permissive Synergismarrow_forwardDiscuss the use of anti-idiotypic antibodies to mimic hormone action.arrow_forward
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