Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 7.1, Problem 1R
Summary Introduction
To review:
The condition in which the autocrine signaling be advantageous for a cell.
Introduction:
The autocrine signals bind to the receptors on the cell that secretes them. They then diffuse into the cell and affect the cells that produce them. The signaling process, wherein the cell signals itself, is called autocrine signaling. In this, the signaling molecules (chemical messengers or hormones) are secreted by the cell to bind to the receptors on its own surface. This results in the development of changes in the cell.
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Life: The Science of Biology
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- What is the sequence of events that takes place in cell signaling?arrow_forwardIntracellular signaling pathways provide multiple opportunities for the amplification of a response to an extracellular signal. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a True Falsearrow_forwardWhat common features are shared by most cell signaling systems?arrow_forward
- How would signaling between two cells e affected by the following mutation: occludes (NA) (obtains new function that induces large gaps)arrow_forwardSignaling within organisms can occur using action potentials (short-term signaling) and/or hormones (long-term signaling). Identify situations where each type of signaling would be better. Describe why having a long-term signaling system is beneficial to organisms (2-3 sentences).arrow_forwardWhat is the role of negative feedback in a cell-signalling pathway? To switch off a signal once of the output reaches a certain threshold To trigger the degradation of upstream signalling components To amplify the output of a signal To ensure a signal is transientarrow_forward
- What is the main benefit of cell signaling via direct physical contact and cell signaling over short distances (ex: nerve cell signaling)?arrow_forwardWhat are the two major mechanisms through which cell signaling leads to a change in cell behavior?arrow_forwardIf a cell wants to directly affect transcription of genes by utilizing cell signaling which of the following molecules would a cell use in order to do this? O polar / charged signaling molecules steroid signaling molecules O protein signaling molecules O large hydrophilic signaling moleculesarrow_forward
- Examine whether the statement "most intracellular signaling pathways provide numerous opportunities for amplifying the responses to extracellular signals" is true or false.arrow_forwardWhich step of cell signaling is exemplified by the section called "Phosphorylation cascade"?arrow_forwardDescribe three ways in which a gradual increase inan extracellular signal can be sharpened by the target cellto produce an abrupt or nearly all-or-none response.arrow_forward
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Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license