Growth, Nutrients, and the Environment
Nonspecific Microbial Control
Antibiotics
100
This is the process by which bacterial cells divide.
What is binary fission?
100
Chemicals that are classified as these kill microorganisms on living tissues.
What are antiseptics?
100
Antibiotics are useful for treating disease because they specifically target these organisms.
What are Bacteria?
200
Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfure (CHNOPS) are called these.
What are macronutrients?
200
Autoclaving and gamma radiation are examples of this method of controlling microbial growth.
What is sterilization?
200
Penicillin is an example of this type of antibiotic.
What is bacteriocidal?
300
DAILY DOUBLE!! Bacteria will begin to produce secondary metabolites, such as antibiotics, during this stage of growth.
What is stationary phase?
300
These chemicals control microbial growth by oxidizing cellular material.
What are halogens?
300
Diseases like MRSA (methicillin resistant Staphylococcus aureus) have developed because of an increase in this.
What is antibiotic resistance?
400
This is the term for an environment where solute concentration inside the cell and outside the cell are equal.
What is isotonic?
400
These chemicals control microbial growth by disrupting plasma membranes and denaturing proteins.
What are phenols?
500
This method is an indirect way to determine how many cells are in a liquid sample, and involves a series of dilutions (everyone's favorite).
What is the plate count method?
500
Heat, pressure, and radiation are all nonspecific methods for controlling microbial growth that fall under this category.
What are physical methods?
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