Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 45, Problem 2TYK
Summary Introduction
Introduction: The endocrine system is the chemical signaling system that uses the blood vessels as information channels. The endocrine glands are ductless organs located within the organ systems and contain groups of endocrine cells that secrete their hormones directly into their surroundings.
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Chapter 45 Solutions
Study Guide for Campbell Biology
Ch. 45 - Label the parts of the following diagrams,...Ch. 45 - Compare negative and positive feedback in the...Ch. 45 - What is a tropic hormone? Give some examples.Ch. 45 - The thyroid gland produces two hormones, thyroxine...Ch. 45 - Prob. 5IQCh. 45 - Prob. 1SYKCh. 45 - What is a hormone cascade pathway? Describe how...Ch. 45 - Prob. 1TYKMCh. 45 - Prob. 2TYKMCh. 45 - Prob. 3TYKM
Ch. 45 - Prob. 4TYKMCh. 45 - Prob. 5TYKMCh. 45 - Prob. 6TYKMCh. 45 - Prob. 7TYKMCh. 45 - Prob. 8TYKMCh. 45 - Prob. 9TYKMCh. 45 - Prob. 10TYKMCh. 45 - Prob. 1TYKCh. 45 - Prob. 2TYKCh. 45 - Prob. 3TYKCh. 45 - The activation of helper T cells during an immune...Ch. 45 - Prob. 5TYKCh. 45 - Prob. 6TYKCh. 45 - Which of the following hormones is secreted by the...Ch. 45 - Prob. 8TYKCh. 45 - Prob. 9TYKCh. 45 - Prob. 10TYKCh. 45 - Prob. 11TYKCh. 45 - The anterior pituitary a. stores and releases...Ch. 45 - Prob. 13TYKCh. 45 - Prob. 14TYKCh. 45 - Prob. 15TYKCh. 45 - Prob. 16TYKCh. 45 - Prob. 17TYKCh. 45 - Prob. 18TYKCh. 45 - Prob. 19TYKCh. 45 - Prob. 20TYK
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- chemical messengers that are synthesized in response to a local stimulus and diffuse to neighboring target cells are a. autocrine b. paracrine c. neurotransmitters d. hormonesarrow_forwardOxytocin is a peptide hormone that is released into the bloodstream and interacts with smooth muscle cells that have receptors, which stimulate lactation when binding to the hormone. Oxytocin is most likely a... A. Lipid-soluble, tropic hormone B. Water-soluble, nontropic hormone C. Water-soluble, tropic hormone D. Lipid-soluble, nontropic hormone E. Pheromonearrow_forwardWhich 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_forward
- Which of the following is a prohormone and can be converted to an active hormone as needed? A. Diiodothyronine , or T2. B. Thyroxine, or T4 . C. Triiodothyronine or T3 D. Thyroid-stimulating hormonearrow_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 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_forward
- 1. Cortisol: a. is made in the middle zone of the adrenal cortex b. is a glucocorticoid c. has an antiimmunity effect d. all of the above 2. Protein hormones have hormone receptors in the cell: a. both a and c above b. membrane c. nucleus 3. D. cytoplasm The difference between a three- and a two-neuron reflex is that a three-neuron reflex: a. includes an efferent neuron b. includes an afferent neuron c. passes through the dorsal root ganglion d. includes an interneuronarrow_forwardThe term “central nervous system” is used to refer to which of the following? a. The brain and spinal cord b. The ventricles that sit at the center of the brain c. Cranial nerves that make direct connections with the brain d. Nerves leaving the spinal cord innervating axial or trunk muscles near the center of the body Which of the following hormones is released by the hypothalamus during stress? a. neuropeptide Y (NPY) b. glucocorticoids (including cortisol) c. adrenocorticotropic hormone (ACTH) d. corticotropin releasing factor (CRF; also called CRH)arrow_forwardWhich of the following is a true statement? A.) the hormone FSH requires a second messenger system to elicit a cellular response B.) prohormones are modified before they become active C.) the combined effects of two hormones would be greater than their individual effects if they synergize by additivity D.) a hormone can influence its own action on the target cell through priming E.) all of the abovearrow_forward
- 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.arrow_forwardWhich 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_forwardWhich one of the following best describes the characteristics of an autocrine hormone? Select one: a. Released into bloodstream b. Acts on neighboring cells c. Acts on same cells to amplify signals d. Acts on target cells far away from site of synthesis e. Diffuses across the synaptic junctionarrow_forward
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