Podcast
Questions and Answers
Where do psychrophiles grow well?
Where do psychrophiles grow well?
- At 20°C
- At 35°C
- At 0°C (correct)
- At 25°C
What is a characteristic of psychrotrophs in terms of growth temperature?
What is a characteristic of psychrotrophs in terms of growth temperature?
- Optimal growth between 55°C and 65°C
- Optimal growth at 40°C
- Growth maxima at 15°C
- Can grow at 0°C (correct)
What is a characteristic of mesophiles in terms of growth temperature?
What is a characteristic of mesophiles in terms of growth temperature?
- Growth maxima at 70°C
- Optimal growth at 15°C (correct)
- Growth minima around 45°C
- Majority are responsible for food spoilage in refrigerators
Where would you most likely find thermophiles growing?
Where would you most likely find thermophiles growing?
What is the pH range for alkalophiles that grow best?
What is the pH range for alkalophiles that grow best?
Why is buffering the culture medium important when dealing with sudden pH changes?
Why is buffering the culture medium important when dealing with sudden pH changes?
What do autotrophs use as their sole source of carbon?
What do autotrophs use as their sole source of carbon?
Which type of bacteria derive their energy from the oxidation of inorganic substances?
Which type of bacteria derive their energy from the oxidation of inorganic substances?
What percentage of the dry weight of a bacterial cell is composed of nitrogen?
What percentage of the dry weight of a bacterial cell is composed of nitrogen?
Which inorganic ion stabilizes ribosomes, cell membranes, nucleic acids, and serves as a co-factor for enzymes?
Which inorganic ion stabilizes ribosomes, cell membranes, nucleic acids, and serves as a co-factor for enzymes?
What do chemoorganotrophs utilize for their carbon source?
What do chemoorganotrophs utilize for their carbon source?
Which type of bacteria utilizes light as their source of energy?
Which type of bacteria utilizes light as their source of energy?
What is the major focus of taxonomy in microbiology?
What is the major focus of taxonomy in microbiology?
What is the main difference between DNA and RNA?
What is the main difference between DNA and RNA?
What is the significance of identification in microbiology?
What is the significance of identification in microbiology?
Which process involves the exchange of genetic information among bacteria?
Which process involves the exchange of genetic information among bacteria?
What is the International Code of Nomenclature of Bacteria primarily concerned with?
What is the International Code of Nomenclature of Bacteria primarily concerned with?
In microbiology, what does the term 'biogenesis' refer to?
In microbiology, what does the term 'biogenesis' refer to?
What is the major difference in the periplasm of Gram-negative and Gram-positive bacteria?
What is the major difference in the periplasm of Gram-negative and Gram-positive bacteria?
What role do periplasmic proteins play in bacterial cells?
What role do periplasmic proteins play in bacterial cells?
Which molecule is unique to bacterial cell walls?
Which molecule is unique to bacterial cell walls?
How do Mycoplasma bacteria differ from other bacteria in terms of cell wall?
How do Mycoplasma bacteria differ from other bacteria in terms of cell wall?
What does the rigid structure of peptidoglycan provide for prokaryotic cells?
What does the rigid structure of peptidoglycan provide for prokaryotic cells?
In which compartment can free exchange of molecules occur in bacterial cells?
In which compartment can free exchange of molecules occur in bacterial cells?
What is the purpose of using chemical agents on living tissue and inanimate objects?
What is the purpose of using chemical agents on living tissue and inanimate objects?
What is the purpose of using hydrogen peroxide in healthcare and hospitals?
What is the purpose of using hydrogen peroxide in healthcare and hospitals?
Why may a single disinfection not be appropriate for all circumstances?
Why may a single disinfection not be appropriate for all circumstances?
What is a key factor in selecting a disinfectant or antiseptic according to the text?
What is a key factor in selecting a disinfectant or antiseptic according to the text?
How do antiseptics differ from disinfectants based on their application?
How do antiseptics differ from disinfectants based on their application?
Why is it important to read the label on a disinfectant or antiseptic product?
Why is it important to read the label on a disinfectant or antiseptic product?
