Gen Combo Ll Biology; Connect W/learnsmart Labs Access Card
4th Edition
ISBN: 9781259853197
Author: Robert Brooker
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 9, Problem 3CQ
Summary Introduction
To describe: The process through which cell signaling helps organisms to interact with their environment.
Introduction: A signal is an agent, which helps various cell processes to cope with the environmental changes in a biological system. The detection and interpretation of signals by the cell in their environment and giving some response towards it is known as cell communication.
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From the perspective of the cell receiving the message, the three stages of
cell signaling are
o the paracrine, local, and synaptic stages.
signal reception, signal transduction, and cellular response.
Osignal reception, nucleus disintegration, and new cell generation.
the alpha, beta, and gamma stages.
Gap 1, S, Gap 2.
Discuss mechanisms by which cells communicate in short and long distances.
Signaling 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).
Chapter 9 Solutions
Gen Combo Ll Biology; Connect W/learnsmart Labs Access Card
Ch. 9.1 - Figure 9.1 Response of a yeast cell to glucose....Ch. 9.1 - Prob. 1BCCh. 9.1 - Which type of signal, paracrine or endocrine, is...Ch. 9.1 - Prob. 3CCCh. 9.2 - Prob. 1BCCh. 9.2 - Prob. 1CCCh. 9.2 - Prob. 2CCCh. 9.3 - Prob. 1BCCh. 9.3 - Prob. 1CCCh. 9.3 - Prob. 2CC
Ch. 9.3 - In the case of signaling pathways involving...Ch. 9.5 - Prob. 1EQCh. 9.5 - Prob. 2EQCh. 9.5 - Prob. 3EQCh. 9.5 - Prob. 1CCCh. 9 - Prob. 1TYCh. 9 - Prob. 2TYCh. 9 - Prob. 3TYCh. 9 - Prob. 4TYCh. 9 - Prob. 5TYCh. 9 - The relay protein Ras is part of the EGF pathway...Ch. 9 - Prob. 7TYCh. 9 - Prob. 8TYCh. 9 - Prob. 9TYCh. 9 - Prob. 10TYCh. 9 - Prob. 1CQCh. 9 - Conceptual Questions What are the three stages of...Ch. 9 - Prob. 3CQCh. 9 - Prob. 1COQCh. 9 - Prob. 2COQ
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- 27) Fill in the blanks Cells adjacent to one another frequently communicate through Other forms of cell-cell communication through In extracellular signaling ligand-receptor interaction induce; 28) Cell-to-cell communication by extracellular signaling usually involves six steps , sort the below given steps according to happening order; Removal of the signal, which usually terminates the cellular response – degradation of ligand- A change in cellular metabolism, function, or development CELLULAR RESPONSE triggered by the receptor-ligand complex – specific to the ligand-receptor complex Release of the signaling molecule by the signaling cell Transport of the signal to the target cell Synthesis of the signaling molecule by the signaling cell Detection of the signal by a specific receptor protein (receptor-ligand specificity 29) Polyethylene can be obtained in two different forms. High-density polyethylene (0.94 g/cm3) is a linear polymer. Low-density polyethylene (0.92 g/cm3) is a…arrow_forwardDO NOT COPY IN GOOGLE OR IN BARTLEBY QUESTION: Drugs and other medecine uses the concept of signaling. Cite some drugs how they mimic natural signal molecules.arrow_forwardExplain the function of signaling receptors and their ligands in cell-cell interactionsarrow_forward
- Why do we need to identify and determine the function of every single molecule involved in cell signalling? provide citations of trusted papers/sites. (no less than 250 words)arrow_forwardDescribe how a cell can chemically communicate with other cells using the following modes of communication: gap junctions, contact signaling, autocrine & paracrine signaling, hormones, neurotransmitters, neurohormones.arrow_forwardDraw a diagram of a membrane receptor and include the following details. Include a depiction of the plasma membrane with which it is associated; label the locations of the extracellular space, the cytoplasm, and the ligand-binding domain.arrow_forward
- a) b) You walk into university and see that everyone has become a unicorn. You try to hide in bluezone only to figure out that everyone can sense you. You are kidnapped by a unicorn, and they ask you: "How do kinases work?" You wake up realizing it was all a dream, but you still wonder: how do kinases work? Hydrolyze the protein and then ATP to activate it First hydrolyze ATP and then transfer Pi to activate a protein Tranfer a free Pi and then hydrolyze ATP to make more free Pi Bind GTP after releasing GDP from the alpha subunitarrow_forwardProteases are enzymes that destroy proteins. Application of these enzymes to an intact cell strips the proteins off the cell surface. If a specific signaling molecule is added to cells stripped of surface proteins and the cell still responds, what must be true of the signaling pathway? The receptor is a ligand-gated ion channel. The signaling molecule doesn't need a receptor. The signal can directly activate the second messenger system and does not need to activate the receptor. The receptor for this signal is inside the cell, and the signaling molecule is nonpolar and can diffuse into the cell.arrow_forwardPlace the steps below in the correct order as they would occur within a signal transduction pathway. Drag and drop options into correct order and submit. For keyboard navigation... SHOW MORE ♥ An inactive signal transduction molecule is activated. A transcription factor enters the nucleus. An active signal transduction molecule binds a transcription factor. A gene is expressed. A receptor undergoes a conformational change. A ligand binds to a receptor. [3 Fuls Your answer II II II II IIarrow_forward
- In terms of cell communication, compare and contrast the action of hydrophilic versus hydrophobic ligands (signaling molecules). What type of receptor is used by these ligands? How does each type of ligand influence cell activity?arrow_forwardMatch the below types of cell communication with the appropriate descriptions Small hydrophobic proteins travel through the endocrine glands and cross to plasma membrane to directly effect gene transcription [ Choose ] [Choose ] contact-dependant Endocrine Paracrine Electrical signals which can be converted to chemical signals are synaptic junctions Neuronal Cell-surface receptors interact with neighboring cell [ Choose ] signaling molecules are excreted by the cell to a local region to influence a tissues behaviour [ Choose ]arrow_forwardWhich of the following is most likely an example of signaling through a transmembrane receptor? The influenza virus recognizes specific proteins on the surface of host cells, causing the entrance of genetic materials into the cytoplasm of the host cells. Low-density lipoproteins (LDL) bind to receptor proteins found on the membrane of receiving cells, triggering its internalization into the receiving cells. The binding of interleukin-6 (IL-6) to the interleukin-6 receptor causes the activation of protein kinases in the cytoplasm, activating the transcription factor NF-κB. The binding of aldosterone to the aldosterone receptor activates its transcription activity, leading to the transcription of genes that promote the uptake of ions and water.arrow_forward
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