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Questions and Answers
What is the main method of reproduction for bacteria?
What is the main method of reproduction for bacteria?
- Binary fission (correct)
- Spore formation
- Conjugation
- Budding
Which of the following nutrients is NOT required for microbial growth?
Which of the following nutrients is NOT required for microbial growth?
- Sulfur
- Carbon
- Phosphorus
- Chlorine (correct)
At what pH range do most bacteria grow?
At what pH range do most bacteria grow?
- 13-14
- 5-8 (correct)
- 1-3
- 10-12
Which type of bacteria requires oxygen to grow?
Which type of bacteria requires oxygen to grow?
Which of the following is an example of an obligate aerobe bacterium?
Which of the following is an example of an obligate aerobe bacterium?
What type of organism does not require oxygen to sustain its metabolic processes?
What type of organism does not require oxygen to sustain its metabolic processes?
Which type of bacteria can tolerate the presence of oxygen but do not require it for growth?
Which type of bacteria can tolerate the presence of oxygen but do not require it for growth?
What is the final electron acceptor in the electron transport reaction for obligate aerobes?
What is the final electron acceptor in the electron transport reaction for obligate aerobes?
Which type of organism requires oxygen to survive?
Which type of organism requires oxygen to survive?
What is the term for an anaerobic organism that can tolerate the presence of oxygen but does not require it for growth?
What is the term for an anaerobic organism that can tolerate the presence of oxygen but does not require it for growth?
What is the final electron acceptor in the electron transport reaction for obligate anaerobes?
What is the final electron acceptor in the electron transport reaction for obligate anaerobes?
Which type of bacteria require low levels of oxygen for growth?
Which type of bacteria require low levels of oxygen for growth?
Which process do bacteria use for reproduction?
Which process do bacteria use for reproduction?
Which type of bacteria requires oxygen to survive?
Which type of bacteria requires oxygen to survive?
What kind of metabolic processes do anaerobic bacteria have?
What kind of metabolic processes do anaerobic bacteria have?
What is the temperature range for the optimum growth of mesophilic bacteria?
What is the temperature range for the optimum growth of mesophilic bacteria?
What is the upper temperature limit for thermophiles to grow?
What is the upper temperature limit for thermophiles to grow?
At what temperature do psychrophiles grow?
At what temperature do psychrophiles grow?
What type of bacteria are largely responsible for infecting humans and animals?
What type of bacteria are largely responsible for infecting humans and animals?
What is the focus of the study of bacterial metabolism?
What is the focus of the study of bacterial metabolism?
What type of reactions in bacteria generate energy?
What type of reactions in bacteria generate energy?
Which enzyme systems catalyze exergonic and endergonic reactions within bacterial cells?
Which enzyme systems catalyze exergonic and endergonic reactions within bacterial cells?
What is the end result of bacterial metabolism?
What is the end result of bacterial metabolism?
What is the main substrate used for studying heterotrophic metabolism?
What is the main substrate used for studying heterotrophic metabolism?
How many ATP molecules are normally generated from the oxidation of 1 molecule of glucose?
How many ATP molecules are normally generated from the oxidation of 1 molecule of glucose?
Which process yields approximately 380,000 calories per mole of glucose?
Which process yields approximately 380,000 calories per mole of glucose?
Which type of bacteria requires an organic compound as a terminal electron acceptor in fermentation?
Which type of bacteria requires an organic compound as a terminal electron acceptor in fermentation?
What is the end product of lactic acid fermentation in some bacteria such as lactobacillus?
What is the end product of lactic acid fermentation in some bacteria such as lactobacillus?
What is formed from the anaerobic dissimilation of glucose in fermentations?
What is formed from the anaerobic dissimilation of glucose in fermentations?
Which compound is most commonly generated from the incomplete biologic oxidation process in fermentation?
Which compound is most commonly generated from the incomplete biologic oxidation process in fermentation?
What can acetaldehyde be reduced to by NADH + H+ during fermentation?
What can acetaldehyde be reduced to by NADH + H+ during fermentation?
What is the end product of lactic acid fermentation?
What is the end product of lactic acid fermentation?
What is required as a terminal electron acceptor in fermentation?
What is required as a terminal electron acceptor in fermentation?
What type of metabolism does respiration express?
What type of metabolism does respiration express?
During which phase of bacterial growth does the cell number increase in a logarithmic fashion?
During which phase of bacterial growth does the cell number increase in a logarithmic fashion?
What is the process called when one bacterial cell divides into two daughter cells?
What is the process called when one bacterial cell divides into two daughter cells?
What is the first thing that happens during the lag phase of bacterial growth?
What is the first thing that happens during the lag phase of bacterial growth?
What marks the end of the log phase of bacterial growth?
What marks the end of the log phase of bacterial growth?
What is synthesized by bacterial cells during the lag phase of growth?
What is synthesized by bacterial cells during the lag phase of growth?
Which phase of the bacterial growth curve involves the preparation for reproduction but no actual reproduction?
Which phase of the bacterial growth curve involves the preparation for reproduction but no actual reproduction?
What happens during the log (exponential) phase of bacterial growth?
What happens during the log (exponential) phase of bacterial growth?
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