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30. Antagonists are compound that a. Prevent synthesis of new receptors b. Prevents synthesis of hormones c. Bind to receptor, activating it d. Bind to a receptor, but do not activate it e. More than one answer is correct

30. Antagonists are compound that a. Prevent synthesis of new receptors b. Prevents synthesis of hormones c. Bind to receptor, activating it d. Bind to a receptor, but do not activate it e. More than one answer is correct

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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30. Antagonists are compound that a. Prevent synthesis of new receptors b. Prevents synthesis of hormones c. Bind to receptor, activating it d. Bind to a receptor, but do not activate it e. More than one answer is correct 33. When a hormone binds to an extracellular receptor, a. DNA produces mRNA b. The receptor-hormone complex causes ion channels to open or close c. The cell's response is faster than when a hormone binds to an intracellular receptor d. Answer a and b e. Answer b and c 38.A a. Fibrinogen clot is formed during the process of coagulation b. Fibrin c. Prothrombin d. Thromboplastin e. Thrombin 41. Electric signals move through the mammalian heart in a particular order. Which order is correct? a. SA node == AV node == atrial muscle == bundle of His = purkinje fibers 3%3D %3D%3D ventricular muscle b. SA node == atrial muscle == AV node == bundle of His = ventricular muscle = 3%3D %3%3D purkinje fibers c. SA node== atrial muscle==ventricular muscle== AV node == bundle of His = purkinje fibers d. SA node == atrial muscle == AV node == bundle of His == purkinje fibers== ventricular muscle 3%3D %3D e. None of the above
Transcribed Image Text:30. Antagonists are compound that a. Prevent synthesis of new receptors b. Prevents synthesis of hormones c. Bind to receptor, activating it d. Bind to a receptor, but do not activate it e. More than one answer is correct 33. When a hormone binds to an extracellular receptor, a. DNA produces mRNA b. The receptor-hormone complex causes ion channels to open or close c. The cell's response is faster than when a hormone binds to an intracellular receptor d. Answer a and b e. Answer b and c 38.A a. Fibrinogen clot is formed during the process of coagulation b. Fibrin c. Prothrombin d. Thromboplastin e. Thrombin 41. Electric signals move through the mammalian heart in a particular order. Which order is correct? a. SA node == AV node == atrial muscle == bundle of His = purkinje fibers 3%3D %3D%3D ventricular muscle b. SA node == atrial muscle == AV node == bundle of His = ventricular muscle = 3%3D %3%3D purkinje fibers c. SA node== atrial muscle==ventricular muscle== AV node == bundle of His = purkinje fibers d. SA node == atrial muscle == AV node == bundle of His == purkinje fibers== ventricular muscle 3%3D %3D e. None of the above
42. Sympathetic stimulation of the heart: a. Increase the heart rate b. Increase the contractility of the heart muscle c. Increase the heart output d. Both a and b above are correct e. All of the above are correct 57. When the ventricle contract, the bicuspid valve prevents blood from flowing from the: a. Left ventricle to left atrium b. Right ventricle to the right atrium c. Right atrium to the left atrium d. Left atrium to the right atrium e. Left ventricle to right ventricle
Transcribed Image Text:42. Sympathetic stimulation of the heart: a. Increase the heart rate b. Increase the contractility of the heart muscle c. Increase the heart output d. Both a and b above are correct e. All of the above are correct 57. When the ventricle contract, the bicuspid valve prevents blood from flowing from the: a. Left ventricle to left atrium b. Right ventricle to the right atrium c. Right atrium to the left atrium d. Left atrium to the right atrium e. Left ventricle to right ventricle
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