Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 17.9, Problem 1MQ
Summary Introduction
Thermophiles are the organisms mostly microbes which survive in extreme heat environment at the temperature of 41oC and above upto 122oC. Acidophiles are the organisms which lives in extreme acidic environments even at the below pH level of 1. Organisms which live in both hyper temperature and acidic environment is said to be thermoacidophilic organisms ( example:Crenoarcaeota).
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Sarcomere Anatomy
Description/Reaction
Thin Filaments
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Thick Filaments
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A Band
?
I Band
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M Line
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H Zone
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Z Disc
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A) G-Actin, F-Actin, Troponin, Tropomyosin
B) Myosin
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Chapter 17 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 17.1 - Since cells of Halobacterium require high levels...Ch. 17.1 - What benefit does bacteriorhodopsin confer on...Ch. 17.1 - Contrast the roles of bacteriorhodopsin,...Ch. 17.2 - Prob. 1MQCh. 17.2 - Prob. 2MQCh. 17.2 - Prob. 1CRCh. 17.3 - Prob. 1MQCh. 17.3 - Prob. 2MQCh. 17.3 - What two major physiological features unify...Ch. 17.4 - Prob. 1MQ
Ch. 17.4 - Prob. 2MQCh. 17.4 - Prob. 1CRCh. 17.5 - Prob. 1MQCh. 17.5 - Prob. 2MQCh. 17.5 - Prob. 1CRCh. 17.6 - Prob. 1MQCh. 17.6 - Prob. 2MQCh. 17.6 - Prob. 1CRCh. 17.7 - Prob. 1MQCh. 17.7 - Prob. 1CRCh. 17.8 - What form of energy metabolism is widespread among...Ch. 17.8 - Prob. 2MQCh. 17.8 - Prob. 1CRCh. 17.9 - Prob. 1MQCh. 17.9 - Prob. 2MQCh. 17.9 - Prob. 1CRCh. 17.10 - What can we conclude about the...Ch. 17.10 - Prob. 2MQCh. 17.10 - Prob. 1CRCh. 17.11 - Prob. 1MQCh. 17.11 - Why would it be impossible for organisms to grow...Ch. 17.11 - What organism is the current record holder for the...Ch. 17.12 - How do hyperthermophiles keep proteins and DNA...Ch. 17.12 - How are the lipids and ribosomes of...Ch. 17.12 - What is reverse DNA gyrase and why is it important...Ch. 17.13 - What phylogenetic and physiological evidence...Ch. 17.13 - Prob. 2MQCh. 17.13 - Which chemolithotrophic lifestyle seems best...Ch. 17.13 - Why might H2 metabolism have evolved as a...Ch. 17 - Using the phylogenetic tree in Figure 17.1 as a...Ch. 17 - Prob. 2AQ
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- If you were to watch muscle tissue contract: Under a light microscope, would you see the muscle fibers get narrower, or the striations get thinner? Explain. At the EM level, focusing on one sarcomere, you would be able to see a region of thick filaments overlapping two regions of thin filaments. Use the structure of the thick filaments to explain how ONE region of thick filaments is able to pull in microfilament in two opposite directions (both toward the center of the sarcomere).arrow_forward45. Which of the following accurately represents how intermediate filaments differ from actin filaments and microtubules? Only intermediate filaments ... … a) interact with extracellular matrix components. b) associate with motor proteins. c) are composed of the same protein subunits in all cells. d) are polar with plus and minus ends. e) play a purely structural role.arrow_forwardCompare the rate of Ca2+ release from the sarcoplasmic reticulum to the rate of Ca2+ return back to the sarcoplasmic reticulum. Which of the following is true? The rate of ca2+ returns is faster than the rate of ca2+ release The rate of ca2+ release is faster than the rate of ca2+ return Rates of Ca2+ release from and return to the sarcoplasmic reticulum are the same.arrow_forward
- Are there any diseases linked to actin filaments? Are any mutations that could halt the growth of actin filaments? I've learned about different drugs that affect filaments like Phalloidin, Cytochalasin, and Latrunculin. But other than drugs, what external environmental factors could halt the process of actin filaments from growing, and is there any diseases or illness that are associated with abnormal actin filament activity? Thank you.arrow_forwardDuring muscular contraction, cross-bridges form between _____ and _____ . Multiple Choice a) myosin, tropomyosin b) myosin, troponin c) troponin, calmodulin d) actin, tropomyosin e) actin, myosinarrow_forwardWhat naturally occurring substance shares the properties of an elastic fibre?arrow_forward
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