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Ex. 3 Questions 1 A pure culture has one type of bacteria growing, a mixed culture has multiple types of bacteria, and sterile media has nothing alive (viable) in it. Can you determine whether or not a bacterial culture grown in broth is a pure culture by visually inspecting it without a microscope? In an agar deep? On a slant? On a plate? Explain your answers. 2. Do the different species of bacteria appear the same or different from each other when grown in media? Do you think it would be easy to identify which of the three species you had just by descriptions of growth? Explain your answer. 3. What is the purpose of flaming the loop after you have used it to transfer bacteria? 4. Can you tell the difference between sterile media and bacterial cultures (media with bacteria growing in/on it)? How can you tell?

Ex. 3 Questions 1 A pure culture has one type of bacteria growing, a mixed culture has multiple types of bacteria, and sterile media has nothing alive (viable) in it. Can you determine whether or not a bacterial culture grown in broth is a pure culture by visually inspecting it without a microscope? In an agar deep? On a slant? On a plate? Explain your answers. 2. Do the different species of bacteria appear the same or different from each other when grown in media? Do you think it would be easy to identify which of the three species you had just by descriptions of growth? Explain your answer. 3. What is the purpose of flaming the loop after you have used it to transfer bacteria? 4. Can you tell the difference between sterile media and bacterial cultures (media with bacteria growing in/on it)? How can you tell?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Ex. 3 Questions 1 A pure culture has one type of bacteria growing, a mixed culture has multiple types of bacteria, and sterile media has nothing alive (viable) in it. Can you determine whether or not a bacterial culture grown in broth is a pure culture by visually inspecting it without a microscope? In an agar deep? On a slant? On a plate? Explain your answers. 2. Do the different species of bacteria appear the same or different from each other when grown in media? Do you think it would be easy to identify which of the three species you had just by descriptions of growth? Explain your answer. 3. What is the purpose of flaming the loop after you have used it to transfer bacteria? 4. Can you tell the difference between sterile media and bacterial cultures (media with bacteria growing in/on it)? How can you tell?
Transcribed Image Text:Ex. 3 Questions 1 A pure culture has one type of bacteria growing, a mixed culture has multiple types of bacteria, and sterile media has nothing alive (viable) in it. Can you determine whether or not a bacterial culture grown in broth is a pure culture by visually inspecting it without a microscope? In an agar deep? On a slant? On a plate? Explain your answers. 2. Do the different species of bacteria appear the same or different from each other when grown in media? Do you think it would be easy to identify which of the three species you had just by descriptions of growth? Explain your answer. 3. What is the purpose of flaming the loop after you have used it to transfer bacteria? 4. Can you tell the difference between sterile media and bacterial cultures (media with bacteria growing in/on it)? How can you tell?
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