Modified Mastering Biology With Pearson Etext -- Standalone Access Card -- For Biological Science (7th Edition)
7th Edition
ISBN: 9780135276556
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 26, Problem 8TYU
Summary Introduction
To review:
Whether the result of the experiment performed on the magnetite-producing bacteria support or undermines the hypothesis that the bacteria in the culture media perform
Introduction:
The researchers observed the bacteria obtained from deep subsurface to produce magnetite under laboratory conditions. The same bacterial culture was treated with a poisonous drug, which blocked or inactivated the enzymes involved in the electron transport chains. These bacterial cultures did not produce magnetite.
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Suppose you are given a container that has a membrane permeable only to metabolic wastes. The container is filled with 5 M metabolic waste in an aqueous solution. You wish to reduce the amount of waste dissolved in the container. You see a 5 L beaker of pure water sitting across the room on a shelf. What is your plan?
Cells use two ways of storing potential energy: 1) as concetration gradients and 2) in molecules.
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(a) Bacteria growing on
glucose as the sole carbon
source grow faster than on
lactose.
Log10 of number of cells-
Time
All glucose
consumed
Glucose
used
Glucose
Time
©2019 Pearson Education Inc
Lag
time
Lactose
Lactose used
(b) Bacteria growing in a
medium containing glucose
and lactose first consume
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Chapter 26 Solutions
Modified Mastering Biology With Pearson Etext -- Standalone Access Card -- For Biological Science (7th Edition)
Ch. 26 - 1. What do some photosynthetic bacteria use as a...Ch. 26 - What are organisms called that use inorganic...Ch. 26 - Prob. 3TYKCh. 26 - 5. What has metagenomic analysis allowed...Ch. 26 - Prob. 6TYUCh. 26 - Prob. 7TYUCh. 26 - Prob. 8TYUCh. 26 - PROCESS OF SCIENCE Streptococcus mutans obtains...Ch. 26 - PROCESS OF SCIENCE Suppose that you’ve been hired...Ch. 26 - Prob. 11PIAT
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