Environmental Factors
Microbial Growth
Microbial Nutrition
Transport
Potpurri
100
psychrophile, mesophile, thermophile
What are the terms given to organisms that grow optimally in a hot cold, moderate, or hot temperature range?
100
The process of a cell dividing into two
What is binary fission?
100
A substance that must be provided to an organism
What is an essential nutrient?
100
Active transport
What is a type of transport that requires energy (ATP)?
100
80% of chronic infections are caused by what?
What are biofilms?
200
An organism that lacks the enzymes for using oxygen in respiration
What is an anerobe?
200
The period where cells reach their maximal rate of cell division
What is exponential growth?
200
Cells are mostly composed of what organic compound?
What are proteins?
200
Water movement from an area of high concentration to an area of low concentration
What is diffusion?
200
A relationship between two or more free-living organisms that benefits both, but is not necessary for their survival
What is synergism?
300
This organism prefers a high concentration of salt
What is a halophile?
300
A flow cytometer is used for this as it relates to microbial growth
What is cell counting?
300
This element functions in the cell to form bonds between molecules and to maintain pH
What is hydrogen?
300
Root words that mean the following: food; to love; to live; other; self
What are troph-, -phile, -obe, hetero-, auto-
300
E. coli in humans produces what beneficial substance?
What is vitamin K?
400
An obligator microbial association where both members benefit
What is mutualism?
400
The term used to describe general 'cloudiness' of population growth in a culture
What is turbidity?
400
Bacteria fall into these two groups based on where they get their carbon
What are phototrophs and chemotrophs?
400
The transport of nutrients against a concentration gradient, the presence of specific membrane proteins, and the expenditure of energy are all what?
What are features of active transport
400
Microbial growth
What is a reference to the (increase in) size of cells as well as number of cells in a population?
500
A method by which microbes sense the size of their own population
What is quorom sensing?
500
List the two major steps in binary fission
What are 1. chromosomal replication and separation; 2. septum/new plasma membrane/cell wall formation.
500
Lithoautotroph
What is a type of autotroph that relies on inorganic materials (no sunlight, no organic nutrients)
500
A cellular structure that aids in phagocytosis
What are pseudopods?
500
The condition that some diabetics have that makes them especially susceptible to fungal infections
What is ketoacidosis?
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