A pure culture - Study guides, Class notes & Summaries
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MMBIO 221 Breakwell Final Review Test Questions and Answers Top Graded 2024
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Suspected Case - shows symptoms consistent w/ outbreaks 
 
Probable Case - symptoms consistent w/ definition 
 
Prevalence - number of cases of a disease that is always in an area 
 
prevelance rate= 
total cases/ population 
 
Incidence - number of new cases/number of people at risk of the disease 
 
Kochs Postulates - 1. The suspected organism should be present in all cases of the disease and absent from healthy animals 
2. The suspected organism should be grown in pure culture 
3. Cells from ...
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BIO 261 Exam 1 – Powell || with 100% Error-free Solutions.
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In what ways are microorganisms important to humans? correct answers They're important in fermentation reactions, they produce biofuel 
Studying microorganisms help with vaccination and antibiotic therapy 
We use microorganisms to purify our water 
Used in pasteurization so that food is safe to eat 
 
What is a bacterial colony and how is one formed? correct answers A colony forms by placing a single microbial cell on a solid nutrient medium where it can grow and divide into millions of cells. ...
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BIO 250 Final Exam || with A+ Guaranteed Solutions.
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A pure culture 
A) is sterile. 
B) is a population of identical cells. 
C) is made of a precisely defined chemical medium. 
D) contains one microbial cell. correct answers b 
 
Microbial cells first evolved on Earth approximately ________ _______ years ago. 
A) 1.6 to 1.8 million 
B) 7.0 to 7.2 million 
C) 3.8 to 3.9 billion 
D) 10.5 to 11.5 billion 
E) None of the above correct answers c 
 
Predict how Pasteur's conclusions on spontaneous generation with swan flasks 
would have changed if he w...
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BIOL 250 Exam 1 Test, Study Guide, and Homework Questions with Correct Answers
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A pure culture 
 
A) is sterile. 
B) is a population of identical cells. 
C) is made of a precisely defined chemical medium. 
D) contains one microbial cell. Correct Answer B 
 
Microbial cells first evolved on Earth approximately ________ _______ years ago. 
 
A) 1.6 to 1.8 million 
B) 7.0 to 7.2 million 
C) 3.8 to 3.9 billion 
D) 10.5 to 11.5 billion 
E) None of the above Correct Answer C 
 
Predict how Pasteur's conclusions on spontaneous generation with swan flasks 
would have changed if he...
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Respiratory Therapy - Lindsey Jones/Clinical Simulations 459 Questions with Verified Answers,100% CORRECT
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Respiratory Therapy - Lindsey Jones/Clinical Simulations 459 Questions with Verified Answers 
 
Information Gathering - Emphysema: 
 
(Abnormal condition of the alveoli resulting destruction and loss of elasticity) - CORRECT ANSWER LEVEL I : Cyanosis, Barrel chest, increased A-P diameter, Accessory muscle use, Digital clubbing of the nail beds, Significant history of smoking and/or occupational exposure to smoke or other pulmonary irritant 
LEVEL II : Dyspnea, Wheezing breath sounds 
LEVEL III ...
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Straighterline Microbiology Exam Questions And Answers
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Straighterline Microbiology Exam Questions And Answers 
 
 
motility 
semisolid media shows what? 
 
 
isolating/culturing bacteria 
solid media is best for? 
 
 
synthetic; defined 
What are the terms for a media whose exact chemical compositions are known? 
 
 
differential media 
allows growth of several types of microbes and displays visible differences among those microbes 
 
 
selective media 
suppress unwanted microbes and encourage desired microbes 
 
 
reducing media 
a culture medium ...
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BIOS 280 Test 2 Questions and Answers 100% Solved
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BIOS 280 Test 2 Questions and Answers 100% Solved 
What is Koch's third postulate? Correct Ans-Cells from a pure culture of the suspected 
organism should cause disease in a healthy animal
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BIOD 171 Module 4 Quiz with Verified Answers |Latest 2024/2025
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What are the requirements of a fastidious microbe? A fastidious microbe is an organism with complex growth requirements and will not grow without then. Enriched medias thus contain these specific and essential nutrients required for the growth of a particular subset of microorganisms. 
 
What is the name of the process of spreading a bacterial culture onto a petri dish? Plating. Plating microbes can be done using a sterile loop, a sterile swab, or a sterilized wire loop. Each device is simpl...
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Final Exam Straighterline Microbiology Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test
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In the nitrogen cycle, which of the following steps involves removal of nitrogen from the 
atmosphere by bacteria? Nitrogen Fixation 
If enough H+ ions are added to pure water to raise the H+ concentration of the solution to 
ten times higher than the original concentration, what is the resulting OH- concentration of 
the solution? 10-8 M 
Fungi are able to reproduce asexually by creating conidiospores and sporangiospores. Which of 
the following is an accurate explanation for why it is advantag...
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MIBO 3500L Final Exam Questions with correct answers
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Culture CORRECT ANSWER A nutrient medium growing one or more species of microorganisms 
 
Pure culture (anexic) CORRECT ANSWER When a culture contains only one species of microorganism 
-Simplifies experimental design and interpretation of results 
-Must be made up of individual cells of a single genetic makeup (genotype) 
-A colony is usually derived from a single cell and thus can be used to inoculate medium and generate this 
 
Wire (platinum) inoculating loop CORRECT ANSWER Used to transfer ...
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