Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 14.2, Problem 3TQ
Summary Introduction
To review:
The effect of decreasing pH (potential of hydrogen) on the movement of flagella in Escherichia coli and the function of proton potential in the cell.
Introduction:
The main function of flagella, which are hair-like appendages is to help move the cells. Hence, they are also known as organ of locomotion. Majority of the motile bacteria move with the aid of flagella. Gametes of algae,
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Suppose the major solutes in intact lysosomes are KCl (~0.1 M) and NaCl (~0.03 M). When isolating lysosomes, what concentration of sucrose is required in the extracting solution at room temperature (25oC) to prevent swelling and lysis? Calculate how much sucrose (342.3 g/mol) would you need to make 500 ml of this extracting solution.
Suppose the concentration of glucose inside a cell is 0.1 mM and the
cell is suspended in a glucose solution of 0.01 mM.
(a) What would be the free energy change involved in transporting
10-6 mole of glucose from the medium into the cell? Assume
T = 37 °C.
(b) What would be the free energy change involved in transporting
10-6 mole of glucose from the medium into the cell if the intracel-
lular and extracellular concentrations were 1 mM and 10 mM,
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(c) If the processes described in parts (a) and (b) were coupled to ATP
hydrolysis, how many moles of ATP would have to be hydrolyzed in
order to make each process favorable? (Use the standard free energy
change for ATP hydrolysis.)
Plasmolysis in plant cell
Describe the cell in 0.1 % Salt Solution and explain the process.
Describe the cell in 5 % Salt Solution and explain the process.
Chapter 14 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 14.1 - Prob. 1TQCh. 14.1 - Prob. 2TQCh. 14.2 - Prob. 1TQCh. 14.2 - Prob. 2TQCh. 14.2 - Prob. 3TQCh. 14.3 - Prob. 1TQCh. 14.3 - Prob. 2TQCh. 14.3 - Prob. 3TQCh. 14.4 - Prob. 1TQCh. 14.5 - Prob. 1TQ
Ch. 14.5 - Prob. 2TQCh. 14.6 - Prob. 1TQCh. 14 - Prob. 1RQCh. 14 - Prob. 2RQCh. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Prob. 8RQCh. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - Prob. 11RQCh. 14 - Prob. 1TQCh. 14 - Prob. 2TQCh. 14 - Prob. 3TQCh. 14 - Prob. 4TQ
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