Bio 250 Study guides, Class notes & Summaries
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BIO 250 Final Exam (Microbiology) | 60 Questions With 100% Correct Answers | Latest Update | Graded A+
- Exam (elaborations) • 22 pages • 2023
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BIO 250 Final Exam (Microbiology) | 60 Questions With 100% Correct Answers | Latest Update | Graded A+. What microbial process was responsible for changing Earth’s atmosphere from 
one without oxygen to one with oxygen? 
Select one: 
a. anaerobic respiration 
b. decomposition 
c. oxygenic photosynthesis 
d. temperature regulation 
In the nitrogen cycle, which of the following phases involves the release of nitrogen 
as 
into the Earth’s atmosphere? 
Select one: 
a. ammonication 
b. denitrica...
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BIO 250 Straighterling Final Exam (Microbiology) 60 Questions With Correct Answers Latest Update 2023 Graded A+
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1-What microbial process was responsible for changing Earth’s atmosphere from 
one without oxygen to one with oxygen? 
Select one: 
a. anaerobic respiration 
b. decomposition 
c. oxygenic photosynthesis 
d. temperature regulation 
2-In the nitrogen cycle, which of the following phases involves the release of nitrogen 
as 
into the Earth’s atmosphere? 
Select one: 
a. ammonification 
b. denitrification 
c. nitrification 
d. nitrogen fixation 
3-Farmers commonly inoculate legume crops with Rhi...
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BIO 250 | Microbiology Final Exam Questions and Answers (Graded A+ 2023) Straighterline
- Exam (elaborations) • 34 pages • 2023
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BIO 250 | Microbiology Final Exam Questions and Answers (Graded A+ 2023) Straighterline. An irregular cluster of spherical cells would be called a/an 
a. Palisades 
b. Sarcina 
c. Staphylococcus 
d. Streptococcus 
e. Spirilla 
2. The study of the immune response to infection caused by microorganisms is 
a. Hypersensitivity 
b. Epidemiology 
c. Immunology 
d. Morbidity 
e. Geomicrobiology 
3. What is the maximum number of electrons in the first energy shell of an atom? 
a. 2 
b. 4 
c. 8 
d. 18 
e...
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Straighterline / BIO 250 / Microbiology Midterm Exam with Complete Solutions 2024
- Exam (elaborations) • 34 pages • 2024
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Straighterline / BIO 250 / 
Microbiology Midterm Exam with 
Complete Solutions 2024 
Microbiology Midterm Exam 
This document is meant to be a pre-emptive study tool only. It is comprised of 5 past 
midterm exams. Questions on current exams are likely different. Use this BEFORE (of 
course not during!) the exam to study practice questions that may be similar or cover 
topics on the new exams, and to understand the depth of material covered so you 
can study better and be more prepared! 
1....
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BIO 250 Final Exam (Microbiology) | Questions With 100% Correct Answers | Latest
- Exam (elaborations) • 20 pages • 2023
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BIO 250 Final Exam (Microbiology) | Questions With 100% Correct Answers | Latest
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BIO 250 Microbiology Midterm Exam Questions with Correct Answers
- Exam (elaborations) • 33 pages • 2023
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Microbiology Midterm Exam 
This document is meant to be a pre-emptive study tool only. It is comprised of 5 past 
midterm exams. Questions on current exams are likely different. Use this BEFORE (of 
course not during!) the exam to study practice questions that may be similar or cover 
topics on the new exams, and to understand the depth of material covered so you can 
study better and be more prepared! 
1. An irregular cluster of spherical cells would be called a/an 
a. Palisades 
b. Sarcina 
c....
-
BIO 250 Exam 1 Questions With 100% Correct Answers | Latest Graded A+ | Straighterline, BIO 250 Final Exam (Microbiology) | 60 Questions With 100% Correct Answers, BIO 250 (Microbiology) Quiz 4, BIO 250 Microbiology Final Exam Questions With Correct Answe
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BIO 250 Exam 1 Questions With 100% Correct Answers | Latest Graded A+ | Straighterline, BIO 250 Final Exam (Microbiology) | 60 Questions With 100% Correct Answers, BIO 250 (Microbiology) Quiz 4, BIO 250 Microbiology Final Exam Questions With Correct Answers AND BIO 250 | Microbiology Final Exam Questions and Answers (Graded A+ 2023) Straighterline
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BIO 250 | Microbiology Exam BUNDLE Questions and Answers |Graded A+ Straighterline
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BIO 250 | Microbiology Exam BUNDLE Questions and Answers |Graded A+ Straighterline
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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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BIO 250L Lab 6 Food Microbiology Straighterline 2023
- Exam (elaborations) • 7 pages • 2023
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“Pre-Lab Questions” 
1. Escherichia coli is one of the most common causes of foodborne illness, yet it is also a common 
microorganism found within the human gut. What explains this disparity? 
This is due to the fact that some E Coli have components that are thought 
to have an alien structure. Infection is primarily brought on by this. 
2. There are several foods and beverages listed in this lab that are created through the actions of 
microorganisms. Name five of the foods and the specifi...
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