Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 1Q
QUESTION: Why does the height of the spike get shorter after successive injections of ligand in Figure 5B-2a?
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Actin alone
Actin + Protein X
--
Time
[F-actin] (µM)
The top panel (a) of this figure shows the graded potential change (far right, upper, electrical trace) that results from ligand binding to the ligand gated Na+ channel. The bottom panel of this figure (b) shows a graded potential change (far right, lower, electrical trace) that results from ligand binding to a ligand gated Cl- channel. From this trace you know (Vm = -70 mV)
1. ECl- is -70 mV
2. ECl- is more negative than -70 mV (i.e., -80 mV)
3. ECl- is more positive than -70 mV (i.e., -60 mV)
Estimate the binding affi nity of a ligand for its receptor from the followingdata:
Chapter 5 Solutions
Becker's World of the Cell (9th Edition)
Ch. 5 - How do phototrophs and chemotrophs depend...Ch. 5 - How does the spontaneity of a chemical reaction...Ch. 5 - QUESTION: Why does the height of the spike get...Ch. 5 - For a chemical reaction happening in a cell, what...Ch. 5 - Prob. 5.1PSCh. 5 - QUANTITATIVE Photosynthetic Energy Transduction....Ch. 5 - Energy Conversion. Most cellular activities...Ch. 5 - Problem Set Enthalpy, Entropy, and Free Energy....Ch. 5 - Violating the Second Law? The second law of...Ch. 5 - QUANTITATIVE The Equilibrium Constant. The...
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