Multiple Choice
Which method is commonly used to determine the original cell density in an Erlenmeyer flask during a microbiology experiment?
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1. Introduction to Microbiology
Introduction to Microbiology
Multiple Choice
Which of the following types of microbes might be found in a boiling hot spring?
A
Halophilic archaea
B
Mesophilic fungi
C
Thermophilic bacteria
D
Psychrophilic bacteria
Verified step by step guidance1
Step 1: Understand the temperature ranges associated with different microbial types. Thermophilic bacteria thrive at high temperatures, typically between 45°C and 80°C, which matches the conditions of a boiling hot spring.
Step 2: Recognize that halophilic archaea prefer high salt concentrations but do not necessarily thrive at very high temperatures like those in boiling hot springs.
Step 3: Note that mesophilic fungi grow best at moderate temperatures, usually between 20°C and 45°C, so they are unlikely to survive in boiling hot springs.
Step 4: Psychrophilic bacteria prefer cold environments, typically below 15°C, so they would not be found in hot springs.
Step 5: Conclude that thermophilic bacteria are the most suitable microbes to be found in boiling hot springs due to their adaptation to high-temperature environments.
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