Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter B, Problem 6P
Summary Introduction
To determine:
The serial dilution in the given samples.
Introduction:
The stepwise dilution of a solution is termed as a serial dilution. Generally, the dilution factor at each stage of serial dilution is constant and leads to geometric progression in a logarithmic manner of the concentration of the sample. Serial dilutions are used to dilute the given substance at a very high level and serial dilutions are also used in the formation of concentration curves.
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If you had an unknown microbe, what steps would you take to determine what type of microbe (e.g., fungi, bacteria, virus) it is? Are there particular characteristics you would search for? Explain.
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INTRODUCTION
LABORATORY SIMULATION
Tube 1
Fructose)
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Tube 2
(Glucose)
Tube 3
(Sucrose)
Tube 4
(Starch)
Tube 5
(Water)
CO₂ Bubble Height (mm)
How to Measure
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PHASE 4:
Measure gas bubble
Complete the following steps:
Select ruler and place next to tube
1. Measure starting height of gas
bubble in respirometer 1. Record in
Lab Data
Repeat measurement for tubes 2-5
by selecting ruler and move next to
each tube. Record each in Lab
Data…
Ch.23
How is Salmonella able to cross from the intestines into the blood?
A. it is so small that it can squeeze between intestinal cells
B. it secretes a toxin that induces its uptake into intestinal epithelial cells
C. it secretes enzymes that create perforations in the intestine
D. it can get into the blood only if the bacteria are deposited directly there, that is, through a puncture
—
Which virus is associated with liver cancer?
A. hepatitis A
B. hepatitis B
C. hepatitis C
D. both hepatitis B and C
—
explain your answer thoroughly
Chapter B Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
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