Psychrophiles - Study guides, Class notes & Summaries
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MICROBIOLOGY TEST QUESTIONS AND ANSWERS 100%
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MICROBIOLOGY TEST QUESTIONS AND ANSWERS 100% 
 
D - correct answer Which of the following is a eukaryotic domain in the three-domain system? 
A. Archaea 
B. Fungi 
C. Bacteria 
D. Eukarya 
 
A - correct answer Who was the first to observe microorganisms with a microscope? 
A. van Leeuwenhoek 
B. Hooke 
C. Koch 
D. Pasteur 
E. None of the above 
 
B - correct answer These are the primary molecules making up membranes in cells: 
A. Proteins 
B. Phospholipids 
C. Nucleic acids 
D. Carbohydrates 
E....
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BYU MMBio 221 exam 1 Robison Questions With All Correct Answers Already Passed!!
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Obligate halophiles - High osmotic pressure aka lots of salt like the great salt lake 
Facultative halophiles - Type that causes acne can be in salty also known as osmolaric but not 
nessesary 
Neutrophiles - Most bacteria Protozoa and pathogens like neutral ph rang 6.5-7.5 
Acidophiles - Really acidic as low as 0 pH 
Alkalineophiles - Grow best in basic range up to 11.5 ex cholera 
Thermophiles - Higher temperatures above 45C ex hot springs 
Hyperthermophiles - Hottest 80C and above 
Mesophiles...
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BIO250 LAB 6 Microbial Ecology | Questions With 100% Correct Answers | Latest Update Graded A+
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BIO250 LAB 6 Microbial Ecology | Questions With 100% Correct Answers | Latest Update Graded A+. Which condition produced the least amount of mold growth? 
Question 
3 
Correct 
Mark 4.80 out 
of 4.80 
Flag 
question 
Question 
4 
Correct 
Mark 4.80 out 
of 4.80 
Flag 
question 
Select one: 
a. Dark- Vinegar 
b. Bright- Vinegar 
c. Dark- Sugar 
d. Bright- Sugar 
The correct answer is: Dark- Vinegar 
Bacteria capable of growing at below-freezing temperatures are known as 
Select one: 
a. psychotro...
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BIOL 250 Exam 1 Questions with 100% Correct Answers
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Binary Fission Correct Answer Cell division in bacteria in which one cell divides into two cells 
 
Why do bacterial cells not undergo mitosis and meiosis? Correct Answer 1) Prokaryotic cells do not possess the machinery to produce spindle fibers and therefore cannot move chromosomes around in the cell 
2) Replication of DNA in a prokaryote does not occur in one phase, but instead occurs continuously 
3) Most bacteria have only one circular chromosome that is attached to the cell membrane 
 
Bac...
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Microbiology Chapter 6 Exam Questions with 100% Correct Answers | Verified | Updated
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Microbiology Chapter 6 Exam Questions 
with 100% Correct Answers | Verified | 
Updated 
Microbes have very narrow optimum temperature ranges. Which of the following classifications 
of microbes are most likely to cause human disease, based on temperature requirements? 
hyperthermophiles 
thermophiles 
mesophiles 
psychrophiles - answerMesophiles - The temperature range of mesophiles overlaps that of 
normal human body temperature, allowing the greatest growth. 
Which of the following statements ...
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Microbiology Ch. 6 Questions And Answers.
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Microbiology Ch. 6 Questions And Answers. 
 
 
Microbes have very narrow optimum temperature ranges. Which of the following classifications of microbes are most likely to cause human disease, based on temperature requirements? 
 hyperthermophiles 
 thermophiles 
 mesophiles 
 psychrophiles - CORRECT ANSWER Mesophiles - The temperature range of mesophiles overlaps that of normal human body temperature, allowing the greatest growth. 
 
Which of the following statements accurately describes the cul...
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BYU MMBio 221 exam 1 Robison Top Rated Study Guide 2024
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Obligate halophiles - High osmotic pressure aka lots of salt like the great salt lake 
 
Facultative halophiles - Type that causes acne can be in salty also known as osmolaric but not nessesary 
 
Neutrophiles - Most bacteria Protozoa and pathogens like neutral ph rang 6.5-7.5 
 
Acidophiles - Really acidic as low as 0 pH 
 
Alkalineophiles - Grow best in basic range up to 11.5 ex cholera 
 
Thermophiles - Higher temperatures above 45C ex hot springs 
 
Hyperthermophiles - Hottest 80C and above ...
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Microbiology Test Questions With Complete Solutions.
- Exam (elaborations) • 26 pages • 2024
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Microbiology Test Questions With Complete Solutions. 
 
 
D - CORRECT ANSWER Which of the following is a eukaryotic domain in the three-domain system? 
A. Archaea 
B. Fungi 
C. Bacteria 
D. Eukarya 
 
A - CORRECT ANSWER Who was the first to observe microorganisms with a microscope? 
A. van Leeuwenhoek 
B. Hooke 
C. Koch 
D. Pasteur 
E. None of the above 
 
B - CORRECT ANSWER These are the primary molecules making up membranes in cells: 
A. Proteins 
B. Phospholipids 
C. Nucleic acids 
D. Carbohy...
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NATS 1670 - Test #1
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NATS 1670 - Test #1 
 
What do all cells have in common? - DNA, RNA, Proteins & Enzymes, Cell Membrane, 
ATP (energy) 
 
What do eukaryotes have that prokaryotes don't? - nucleus, organelles, RNA processing 
 
what bacteria grows best below 20 degrees? - psychrophiles 
 
what bacteria grows best between 20-50 degrees? - mesophiles 
 
what bacteria grows best over 50 degrees? - thermophiles and hyperthermophiles 
 
what is an example of an acidophile? - helicobacter pylori: causes peptic ulcer...
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Bio 205 Practice Exam Questions and Correct Answers
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Microbial Growth - Increase in number of cells, not cell size - There are Populations and Colonies 
What are the 2 requirements for growth? 1. Physical requirements 2. Chemical requirements 
What are the physical requirements for growth? Temperature pH Osmotic pressure 
What are the chemical requirements for growth? Carbon Nitrogen, sulfur, and phosphorous Trace elements Oxygen Organic growth factor 
How does temperature affect growth? - Every bacteria has an optimal growth temperature - Tempera...
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