Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 11.4, Problem 2CC
WHAT IF? → If two cells have different scaffolding proteins, explain how they might behave differently in response to the same signaling molecule.
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What is Anchorage Dependence?
Describe the different Cell Junctions in Animal cells.
What is the only Cell Junction in Plant cells? Why do Plant cells only have one type of Cell Junction?
Explain Cell-Cell signaling involving Signal Transduction and G-Proteins.
Draw a cell. Draw a receptor that binds to a signaling molecule on the outside of the cell and a receptor that binds to a signaling molecule on the inside of the cell. What property does a signaling molecule that crosses the cell membrane (plasma membrane) need?
Chapter 11 Solutions
Campbell Biology
Ch. 11.1 - Explain how signaling is involved in ensuring that...Ch. 11.1 - In liver cells, glycogen Phosphorylase acts in...Ch. 11.1 - Prob. 3CCCh. 11.2 - Prob. 1CCCh. 11.2 - WHAT IF? What would the effect be if a cell made...Ch. 11.2 - MAKE CONNECTIONS How is ligand binding similar to...Ch. 11.3 - What is a protein kinase, and what is its role in...Ch. 11.3 - When a signal transduction pathway involves a...Ch. 11.3 - What is the actual signal that is being transduced...Ch. 11.3 - WHAT IF? If you exposed a cell to a ligand that...
Ch. 11.4 - How can a targct cell's response to a single...Ch. 11.4 - WHAT IF? If two cells have different scaffolding...Ch. 11.4 - Prob. 3CCCh. 11.4 - Prob. 4CCCh. 11.5 - Give an example of apoptosis during embryonic...Ch. 11.5 - WH AT IF? If apoptosis occurred when it should...Ch. 11 - What determines whether a cell responds to a...Ch. 11 - How are the structures of a GPCR and an RTK...Ch. 11 - What is the difference between a protein kinase...Ch. 11 - What mechanisms in the cell terminale its response...Ch. 11 - What is an explanation for the similarities...Ch. 11 - Binding of a signaling molecule to which type of...Ch. 11 - The activation of receptor tyrosinc kinases is...Ch. 11 - Lipid-soluble signaling molecules, such as...Ch. 11 - Consider this pathway: epinephrine G...Ch. 11 - Apoptosis involves all but which of the following?...Ch. 11 - Which Observation suggestcd to Sutherland the...Ch. 11 - Prob. 7TYUCh. 11 - DRAW IT Draw the following apoptotic pathway,...Ch. 11 - EVOLUTION CONNECTION Identify the evolutlonary...Ch. 11 - Prob. 10TYUCh. 11 - SCIENCE, TECHNOLOGY, AND SOCIETY The aging process...Ch. 11 - WRITE ABOUT A THEME: ORGANIZATION The properties...Ch. 11 - SYNTHESIZE YOUR KNOWLEDGE There are five basic...
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- Pane Create a diagram which illustrates the typical signalling mechanism of action of g protein coupled and possible routes of communication (autocrine etc.). Should show the specific molecules involved, the mechanisms of signal transduction and indicate the different pathways that are activated. It should include a specific example of a receptor, ligand and signalling pathway for each general class. Include as wide a variety of ligands and modes of action as you can. for a novel pathway. Superfamily Give the superfamily to which the receptor belongs Accession Give the Uniprot accession number Name Give the molecule name Species Give the species Ligand What is the ligand, or class of ligands which bind to this receptor? Key What are the physiological processes involved? Is this autocrine, physiological paracrine or endocrine or some combination of them? What is the pathology of the receptor? process involved What are the downstream actions of the receptor? Which molecules does it…arrow_forwardRTK: What would the following double mutations mean for the status of the signaling pathway, and the phosphorylation of MAPKK (MEK)? 1. Ligand is bound to the receptor; MAPK T120A mutation (T120 is normally phosphorylated by MAPKK) a) Pathway ON (final output is achieved) b) Pathway OFF (no final output) c) Phosphorylation of MAPKK MEK d) NO Phosphorylation of MAPKK MEK 2) Ligand is not bound to the receptor; MAPKKK T132E mutation (T132 is normally phosphorylated by Ras) a) Pathway ON (final output is achieved) b) Pathway OFF (no final output) c) Phosphorylation of MAPKK MEK d) NO Phosphorylation of MAPKK MEKarrow_forwardcompare and contrast how GPCRs and RTKs transduce their signal to the cell? include the types of ligands they bind, the GTP binding protein that is activated, and how the signal is transduced and amplified. what effects does it have on the cell?arrow_forward
- Cell signaling in plant and animal cells is similar in some ways and different in others. Offer one or more hypotheses for these similarities and differences,and cite specific examples.arrow_forwardCell signaling in plant and animal cells is similar in those ways and different in others. Offer one or more hypotheses for these similarities and differences, and cite specific examples.arrow_forward. which of the following statements about heterotrimetric G proteins and their receptors is incorrect? A: when GTP binds to the alpha subunit of the G protein, the beta-gamma subunit dissociates from the alpha subunit B: G-protein coupled receptors contain nine transmembrane alpha helices C: binding of arrestin causes removal of the receptor from the membrane D: G protein- coupled receptors may be desensitized by serine phosphorylation I had chosen option A and got it wrong. What is the Correct answer and explain how it is. Also, where did i go wrong in choosing option A?arrow_forward
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Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license