EBK HUMAN PHYSIOLOGY
EBK HUMAN PHYSIOLOGY
8th Edition
ISBN: 9780134704227
Author: Silverthorn
Publisher: YUZU
Question
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Chapter 6, Problem 21RQ

a.

Summary Introduction

Introduction: Receptors are the proteins that have a specific site called the binding site that facilitates binding of the ligand. The binding site of the receptor is highly specific and allows only a single molecule or a class of molecule to attach to the receptor.

b.

Summary Introduction

To determine: The differences between neurotransmitter and neurohormone.

Introduction: Cell signaling is important for establishing coordination between the different cells for an organized functioning of the body. The signaling molecules play an important role in cell signaling. These molecules are released by the synapses or produced by certain organs that bind to the receptors present inside or outside the cell and induce changes in the functioning of the cell.

c.

Summary Introduction

To determine: Which among acetylcholine or epinephrine chemical messenger is secreted in higher concentration.

Introduction: The role of the receptor is to identify the signaling molecules and to attach them to the binding site present on them. Sometimes, more than one molecule binds to the binding site, and these molecules may be an antagonist or agonist.

Summary Introduction

To determine: The reason for the release of higher concentration of epinephrine.

Introduction: Hormones are the chemical messengers that induce metabolic changes in the cell by binding to their cell surface receptors. They can either travel to the nearby cells or it can also travel through the blood and reach the target cells present at different locations.

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Which of the following statements about the intensity of a nerve response is true? a. A stimulus reaching the threshold level may or may not propagate a nerve impulse. b. A stimulus resulting in a greater voltage shift will result in a stronger nerve impulse and increased sense of perception in the brain. c. All stimuli, regardless of the strength, will always generate a nerve impulse. d. A small voltage shift and a large voltage shift will yield the same nerve impulse as long as the stimulus reaches the threshold level.
Your roommate has a severe peanut allergy. When exposed to peanuts, their lungs close up. How does an epi-pen prevent this from happening? A. Epinephrine will antagonize the muscarinic receptors in the lungs, preventing bronchoconstriction B. Epinephrine will antagonize the adrenergic receptors in the lungs, stimulating bronchodilaton. C. Epinephrine will agonize the adrenergic receptors in the lungs, causing bronchodilation. D. Epinephrine will agonize the muscarinic receptors in the lungs preventing bronchoconstriction.
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Chapter 6 Solutions

EBK HUMAN PHYSIOLOGY

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