Question 13Which of the following is a property of signaling for epinephrine, growth hormone, GIP and somatostatin?A. Conversion to an active form in the target tissueOB. Cell surface receptor bindingOC. Diffusion into the cell nucleusOD. Inhibition of a tyrosine kinaseO E. Activation of transcription

Cell communication in biology is referred to as cell signaling which is the ability of a cell to…

Answered: Which of the following is a property of…

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

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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Match the following description of a cell signal with signal type A. signals across gap junctions B. signal involves a neurotransmitter, short lived C. signal can travel long distances and to many cell types D. communication between neighboring cells, signals short lived E. None of the Above A 1. Paracrine select 2. Direct contact select v 3. Endocrine select - 4. synaptic select 5. Cyclic AMP
A loss of function mutation in a gene encoding a SNARE protein would result in which of the following effects? оа. The anterior pituitary would be unable to release its hormones o b. Skeletal muscle cells, but not cardiac or smooth muscle, would lose their ability to contract O c. Neural cells would be unable to generate action potentials d. Neural cells would be unable to transmit action potentials via electrical synapses Neural cells would be unable to transmit action potentials via chemical synapses O e.
Explain the following diagram
Hormones are chemical signaling molecules produced by specialized cells and transmitted via the circulatory system to all other cells in the body. Which of the following describes a condition that needs to be met for a target cell to re- ceive the signaling molecules? A B с D The size and shape of the target cell needs to be similar to that of the cell that secreted the hormone. The location of the target cell needs to be within the local region of the cell that secreted the hormone. The target cell needs to have sufficient ATP to transport the hormone into the cell. The cytosol of the target cell has to have receptors that recognize and bind the hormone.
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A hormone epinephrine binds to G-protein coupled receptor and activate multiple signaling pathways to induce "fight- or-flight" response. In these signaling pathways, which enzyme is responsible for the generation of IP3, a second messenger for calcium release from endoplasmic reticulum? O adenylyl cyclase O protein kinase C O protein kinase A O phospholipase C O calmodulin
A signaling molecule M is active when it is phosphorylated (M-P). The M-P has downstream target molecules in nucleus. Provide a possible mechanism by which M does its job
Which is a correct explanation of an aspect within G protein signaling pathway? ATP powers the G protein to cause it to move and activate an enzyme O GTP activates the G protein causing it to move to activate the next protein O The receptor is active when bound to GTP GTP causes the G protein to activate and bind to the receptor
A cell has epinephrine receptors, yet is unable to respond to epinephrine signaling. One possible reason is: A. The cell has no DNA. B. The cell is missing a functional G-protein or adenylyl cyclase. C. All of the epinephrine receptors are on the cell’s surface. (They’re supposed to be in the cytoplasm!) D. Both A and C.
1. Please explain the picture using the following terms: Receptor, (G protein or ligand-gated ion channel) Protein kinases and phosphorylation Secondary messengers Response (DNA to protein = expression of a protein/trait/action by a cell)
Which of the following statements about the role of ATP in cell signalling is correct? Choose only the best answer. All of the other options are correct. ATP functions as a secondary messenger. ATP is involved in the activation of G protein-coupled receptors. ATP is involved in the activation of some proteins that serve as relay molecules.
A biochemist is designing a new drug that will mimic the shape and function of a particular intercellular signaling molecule. Therefore she must produce a molecule that will bind to the receptor protein and... A. produce a cellular response by altering the Na+/K+ pump located near the receptor site. B. induce a change in the receptor molecule shape, which will ultimately prevent a cellular response. C. induce a change in the receptor molecule shape, which will ultimately produce a cellular response. D. induce a change in the phospholipid bilayer that causes a polar reversal allowing the molecules to be endocytose (engulfed).

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Which of the following is a property of signaling for epinephrine, growth hormone, GIP and somatostatin? O A. Conversion to an active form in the target tissue O B. Cell surface receptor binding OC. Diffusion into the cell nucleus OD. Inhibition of a tyrosine kinase O E. Activation of transcription