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 3.2, Problem 2MQ
Summary Introduction
The movement molecules through the cell membrane is an important function for transporting of nutrients to the cell. It is carried out actively by transporter systems present in the cell membrane. In prokaryotic life, there are three major transport systems are involved. They are simple transporters, group translocation or phosphotransferase system, and ABC transporters. ABC transporters, the substances are initially bound by a specific protein which then activates ATP hydrolyzing protein and the protein channel to provide energy for transport event through the protein channel
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Chapter 3 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 3.1 - Which four chemical elements make up the bulk of a...Ch. 3.1 - Which two classes of macromolecules contain most...Ch. 3.1 - Differentiate between trace metals and growth...Ch. 3.1 - Prob. 1CRCh. 3.2 - Compare and contrast simple transporters, the...Ch. 3.2 - Prob. 2MQCh. 3.2 - Cells of Escherichia coli transport lactose via...Ch. 3.3 - Prob. 1MQCh. 3.3 - Prob. 2MQCh. 3.3 - Prob. 1CR
Ch. 3.4 - What is free energy?Ch. 3.4 - Prob. 2MQCh. 3.4 - Using Table 3.2, calculate G0 for the reaction...Ch. 3.4 - Prob. 1CRCh. 3.5 - Prob. 1MQCh. 3.5 - Prob. 2MQCh. 3.5 - Prob. 3MQCh. 3.5 - Prob. 1CRCh. 3.6 - Prob. 1MQCh. 3.6 - Prob. 2MQCh. 3.6 - Prob. 3MQCh. 3.6 - Prob. 1CRCh. 3.7 - How much free energy is released when ATP is...Ch. 3.7 - Prob. 2MQCh. 3.7 - Prob. 3MQCh. 3.7 - Prob. 1CRCh. 3.8 - Which reactions in glycolysis are redox steps?Ch. 3.8 - Prob. 2MQCh. 3.8 - Prob. 3MQCh. 3.8 - How is ATP made in fermentation and in...Ch. 3.9 - How many molecules of CO2, NADH, and FADH2 are...Ch. 3.9 - What two major roles do the citric acid cycle and...Ch. 3.9 - Why is the glyoxylate cycle necessary for growth...Ch. 3.9 - Prob. 1CRCh. 3.10 - Prob. 1MQCh. 3.10 - Which electron carriers described in this section...Ch. 3.10 - List some of the key electron carriers found in...Ch. 3.11 - How do electron transport reactions generate the...Ch. 3.11 - How much energy is released per NADH oxidized...Ch. 3.11 - What structure in the cell links the proton motive...Ch. 3.11 - Prob. 1CRCh. 3.12 - Prob. 1MQCh. 3.12 - Prob. 2MQCh. 3.12 - Prob. 3MQCh. 3.12 - What is the major difference between aerobic...Ch. 3.13 - What form of activated glucose is used in the...Ch. 3.13 - Prob. 2MQCh. 3.13 - What functions does the pentose phosphate pathway...Ch. 3.13 - What is the importance of the enzyme...Ch. 3.14 - Prob. 1MQCh. 3.14 - List the steps required for the cell to...Ch. 3.14 - Which nitrogen bases are purines and which are...Ch. 3.14 - Prob. 1CRCh. 3.15 - Prob. 1MQCh. 3.15 - Prob. 2MQCh. 3.15 - Describe the process by which a fatty acid such as...Ch. 3 - Using the data of Figure 3.10, predict the...Ch. 3 - Prob. 2AQ
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- What is phosphate transporter?arrow_forwardWhat are the distinctions between facilitated difussion, primary active transport and secondary active transport?arrow_forwardDiscuss carrier-mediated transport. How could you experimentally distinguish between the different types of carrier-mediated transport?arrow_forward
- Name the three classes of membrane transport proteins. Explain which one or ones of these classes is able to move glucose and which can move bicarbonate (HCO3−) against an electrochemical gradient. In the case of bicarbonate, but not glucose, the ΔG of the transport process has two terms. What are these two terms, and why does the second not apply to glucose? Why are cotransporters often referred to as examples of secondary active transport?arrow_forwardWhat is the purpose of gating in the transport channel?arrow_forwardName the three classes of membrane transport proteins. Explain which one or ones of these classes is able to move glucose and which can move bicarbonate (HCO3 −) against an electrochemical gradient. In the case of bicarbonate, but not glucose, the ΔG of the transport process has two terms.What are these two terms, and why does the second not apply to glucose? Why are cotransporters often referred to as examples of secondary active transport?arrow_forward
- Does active transport move high to low concentration?arrow_forwardCompare and contrast simple transporters, thephosphotransferase system, and ABC transporters in terms of(1) energy source, (2) chemical alterations of the solute duringtransport, and (3) number of proteins requiredarrow_forwardWhat are three types of energy that can power an active transport pump? Provide an example of each type (eg Na/K pump)arrow_forward
- the sodium channel exchanger NCX transports sodium into and calcium out of cardiac muscle cells. Describe why this itransporter is classified as secondary active transport?arrow_forwardWhy is bulk transport important to cells? Among the three types bulk transport of molecules which do you think is most efficient and selective? (T/I)arrow_forwardInhibition of the Na,K-ATPase might reasonably result in which of the following: a.) gradual cellular accumulation of K+ b.) gradual decrease in cytoplasmic Na+ c.) cell shrinkage d.) hyperpolarization of the membrane potential e.) reduced activity of many secondary active transportersarrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license