Podcast
Questions and Answers
What is the range of water content in cells?
What is the range of water content in cells?
- 80% - 95% (correct)
- 50% - 70%
- 60% - 80%
- 70% - 90%
Which type of microorganism grows best at temperatures above 100°C?
Which type of microorganism grows best at temperatures above 100°C?
- Thermophiles
- Hyperthermophiles (correct)
- Mesophiles
- Psychrophiles
Which of the following microorganisms can be found at 140°F (60°C) or lower?
Which of the following microorganisms can be found at 140°F (60°C) or lower?
- Protozoa
- Algae (correct)
- Cyanobacteria
- Fungi
What do you call microorganisms that prefer warmer temperatures but can tolerate very cold temperatures as well?
What do you call microorganisms that prefer warmer temperatures but can tolerate very cold temperatures as well?
Which of the following elements is essential to life?
Which of the following elements is essential to life?
What are organisms that grow best at moderate temperatures called?
What are organisms that grow best at moderate temperatures called?
What type of microorganisms grow best at moderate temperatures?
What type of microorganisms grow best at moderate temperatures?
What is the term for the elimination of all microbes?
What is the term for the elimination of all microbes?
What is the term for the process of killing microorganisms?
What is the term for the process of killing microorganisms?
Which phase of the growth curve is characterized by a period of slow growth?
Which phase of the growth curve is characterized by a period of slow growth?
What is the term for the process of inhibiting microbial growth using heat?
What is the term for the process of inhibiting microbial growth using heat?
What percentage of water is present in cells?
What percentage of water is present in cells?
What is the ideal pH range for the growth of most microorganisms?
What is the ideal pH range for the growth of most microorganisms?
What is the term that refers to the hydrogen ion concentration of a solution?
What is the term that refers to the hydrogen ion concentration of a solution?
What is the term used to describe the pressure exerted on a cell membrane by solutions both inside and outside the cell?
What is the term used to describe the pressure exerted on a cell membrane by solutions both inside and outside the cell?
What is the process by which bacteria multiply?
What is the process by which bacteria multiply?
What is the term used to describe the time taken by a particular bacterial species to undergo binary fission?
What is the term used to describe the time taken by a particular bacterial species to undergo binary fission?
What is the term used to describe microorganisms that are difficult to grow in the laboratory?
What is the term used to describe microorganisms that are difficult to grow in the laboratory?
