Microbiology: An Introduction
11th Edition
ISBN: 9780321733603
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: Benjamin Cummings
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Chapter 4, Problem 5A
When E. coli cells are exposed to a hypertonic solution, the bacteria produce a transporter protein that can move K1 (potassium ions) into the cell. Of what value is the active transport of K1, which requires ATP?
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Chapter 4 Solutions
Microbiology: An Introduction
Ch. 4 - DRAW IT Diagram each of the following flagellar...Ch. 4 - Endospore formation is called (a) _____. It is...Ch. 4 - DRAW IT Draw the bacterial shapes listed in (a),...Ch. 4 - Match the structures in column A to their...Ch. 4 - Why is an endospore called a resting structure? Of...Ch. 4 - Compare and contrast the following a. simple...Ch. 4 - Prob. 7RCh. 4 - Starch is readily metabolized by many cells, but a...Ch. 4 - Match the characteristics of eukaryotic cells in...Ch. 4 - NAME IT What group of microbes is characterized by...
Ch. 4 - How can prokaryotic cells be smaller than...Ch. 4 - The smallest eukaryotic cell is the motile alga...Ch. 4 - Two types of prokaryotic cells have been...Ch. 4 - In 1985, a 0.5-mm cell was discovered in...Ch. 4 - When E. coli cells are exposed to a hypertonic...Ch. 4 - Which of the following is not a distinguishing...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which of the following statements best describes...Ch. 4 - Which of the following is false about fimbriae? a....Ch. 4 - Which of the following pairs is mismatched? a....Ch. 4 - Which of the following pairs is mismatched? a....Ch. 4 - You have isolated a motile, gram-positive cell...Ch. 4 - The antibiotic amphothericin B disrupts plasma...Ch. 4 - Clostridium botulinum is a strict anaerobe; that...Ch. 4 - A South San Francisco child enjoyed bath time at...Ch. 4 - Live cultures of Bacillus thuringiensis (Dipel)...
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- Which of the following methods of transport is being used to transfer the substance into the cell in the accompanying graph? a. diffusion down a concentration gradient b. osmosis c. facilitated diffusion d. active transport e. vesicular transport f. It is impossible to tell with the information provided.arrow_forwardWhat is the difference between active transport and passive transport?arrow_forwardFor the following modes of transport for membranes, tell whether the flow is with or against chemical potenial. Meaning +deltaG or -deltag A. Passive Diffusion B.Faciliated Diffusion C.Active Transportarrow_forward
- What is the primary difference between passive and active transport in terms of concentration gradients?arrow_forwardIf your cell can use passive transport without having to use energy, why would a cell invest ATP to move particles using active transport?arrow_forwardWhen transpeptidation is inhibited by beta-lactam antibiotics, bacteria can still synthesize components of the cell wall, but they will fail to maintain structural integrity under osmotic pressure. True or False?arrow_forward
- Liver cells are packed with glucose. If the concentration of glucose in a liver cell is higher than in the surrounding fluid, what mechanism could the cell use to import even more glucose? Why would only this mode of transport work?arrow_forwardWhich process requires energy—passive or active transport? Why is energy sometimes required to move solute across the cell membrane?arrow_forwardWhat is the relationship between concentration gradient and active and passive transport?arrow_forward
- In the Sodium/Potassium pump, how is ATP used in the process of Active Transport? What is the goal and purpose of the Sodium/Potassium pump?arrow_forwardWhat advantages are there to using diffusion as a transport mechanism versus active transport of a substance?arrow_forwardWhich of the following types of transporters would be utilized to move two different types of molecules across the cell membrane in the same direction? a. Uniporter b. Symporter/Cotransporter c. Antiporter d. Chemiporter e. Protoporterarrow_forward
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