Streak plates Study guides, Class notes & Summaries
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BIOD 171 Portage Learning Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 Update
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BIOD 171 Portage Learning Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 UpdatePortage Learning BIOD 171 Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 Update 
 
True or False: A virus is considered a microorganism. 
False. Viruses are not living and as such are not considered microorganisms. Viruses can, however, be classified as microbes, a more general term that includes microorganisms and viruses. 
 
1.	What is the smallest biological unit of life? 
A cell. ...
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BIO 250L Lab 2 Culturing & Aseptic Technique Straighterline 2023
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1. Proper aseptic technique is crucial to ensuring growth of pure bacterial colonies. 
What is one experimental way you can test your practices to confirm that you 
are using proper aseptic technique?This could be done by having a control agar 
plate where sterile loop was used to streak the agar. If it grows bacterial colonies after 
some time, then aseptic technique was not successful. 
2. In a laboratory setting, what are three ways you can properly sterilize culturing 
equipment? 
a. Dry hea...
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Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6
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Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 
 
Exams 
 
 
 
1. What are the two major types of nucleic acids and their roles? 
 
 
DNA- deoxyribonucleic acid RNA- Ribonucleic acid 
DNA- Cellular life has DNA and a role that DNA has is long-term storage of information, it holds the characteristics of living organisms. 
RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins 
 
 
 
 
 
 
 
 
 
 
 
 
Tru...
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BIO250L Lab 2 Culturing & Aseptic Technique SPRING 2024 Straighterline
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Lab Report Format Expectations 
Utilize college level grammar and professional formatting when completing this worksheet. 
Submissions without proper formatting, all required photos or sufficient responses will be rejected. 
Pre-lab Questions 
1. This lab includes two experiments that each look at different aspects of culturing 
microorganisms onto growth media. What concepts does each experiment focus on? Why do 
you think these concepts are important to the field of microbiology? 
The first ex...
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Portage Learning BIOD 171 Microbiology Lecture Exam 1-6 (100% CORRECT ANSWERS)
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Exams 1. What are the two major types of nucleic acids and their roles? DNA- deoxyribonucleic acid RNA- Ribonucleic acid DNA- Cellular life has DNA and a role that DNA has is long-term s torage of information, it holds the characteristics of living organisms. RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins True or False: Archaea is noted for its ability to survive under harsh conditions. True. Archaea can often be...
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BIOS 242 Lab 1: Culture Transfer Techniques
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Lab 2: Techniques for Isolation of Pure Cultures 
Learning Objectives: 
 Isolate pure cultures from a mixed population of microorganisms using aseptic technique. 
 Learn the streak plate method 
VIDEO: 
 Making a streak Plate (Bio-Rad Laboratories) 

Introduction: 
Microorganisms exist in nature as mixed populations of different species. In order to study them and 
observe their characteristics it is first necessary to obtain pure cultures (a culture containing only one 
species of an o...
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Mic 205 exam 2 questions with correct answers
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Growth CORRECT ANSWER Refers to an increase in cell number 
 
Discrete colony CORRECT ANSWER Aggregation of cells visible on surface of solid media 
 
Dispersed cells CORRECT ANSWER Single cells suspended in liquid medium 
 
Complex biofilm CORRECT ANSWER Community of one or more species of bacteria 
 
Clinical specimens CORRECT ANSWER Human materials examined or tested for presence of bacteria and other microbes 
 
Considerations of clinical specimens CORRECT ANSWER Technique, timely delivery, ...
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BIO250L+V2+Lab+4 - Microbiolagy Lab 4 Selective and Agar Medium from straighter line course. Distinguishing
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Student Name: Ashley Anderson. 
Access Code (located on the underside of the lid of your lab kit): AC-VRIKUTP. 
 
Pre-Lab Questions 
1.	What is the difference between chemically defined and chemically complex media? Give either a clinical or environmental research example for which each media type would be the most appropriate choice for culturing microorganisms. 
Chemically defined media is media where the exact chemical compositions are known 
 
and made with purified ingredients. This type of...
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Biol 1020 lab final Exam and A+ Answers
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Biol 1020 lab final Exam and A+ 
Answers 
Liquid media used to increase the number of microorganisms. - Broth 
Solid media used to isolate microbes - agar plate 
Normal flora bacteria used for studies involving osmotic pressure, antibiotic resistance, 
and biofilms. - S. epidermidis 
Clump of genetically identical microorganisms. - colony forming unit 
Single-celled fungi used for studies involving fermentation, genetics, and aging. - S. 
cerevisiae 
instrument used for spreading microorganis...
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BIO 250L Microbiology Lab 4 Selective Media & Agar: Questions With 100% Correct Answers | Latest Update Graded A+
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BIO 250L Microbiology Lab 4 Selective Media & Agar: Questions With 100% Correct Answers | Latest Update Graded A+. Why is cow manure used as a potential source of starch-degrading bacteria? (If you are not 
familiar with the process of digestion in cows, use a reputable internet source to inform your 
answer.) 
Because cows eat a high-fiber diet that includes starch, the feces of a cow manure is low in protein but high 
in starch. 
2. What are some other potential sources of starch-degrading bac...