Unit 2.5 Environmental control of metabolism Flashcards
Complex growth medium used for microorganisms
Beef Extract
The phase at which the death rate of cells exceeds the rate of cell division
Death Phase
Growth phase of a microorganism which involves the rapid increase in cell numbers
Exponential Growth
The time taken for a microorganism cell to divide
Generation Time
A substance which encourages the growth of microorganisms
Growth Medium
A substance that causes a gene to be expressed, often leading the the production of an enzyme.
Inducer
Earliest growth phase of microorganisms
Lag Phase
Exponential phase of microorganism growth
Log Phase
Substance that is needed to start a metabolic pathway
Precursor
Substance produced during the stationary phase of growth of a culture of microorganisms
Secondary metabolites
Phase of microorganism growth during which secondary substances are made
Stationary Phase
Conditions which do not contain contaminating microorganisms
Sterile
Total number of cells in a culture (Viable and non viable)
Total Cell Count
Number of live cells from a total cell count
Viable Cell Count
Beef Extract
Complex growth medium used for microorganisms
Death Phase
The phase at which the death rate of cells exceeds the rate of cell division
Exponential Growth
Growth phase of a microorganism which involves the rapid increase in cell numbers
Generation Time
The time taken for a microorganism cell to divide
Growth Medium
A substance which encourages the growth of microorganisms
Inducer
A substance that causes a gene to be expressed, often leading the the production of an enzyme.
Lag Phase
Earliest growth phase of microorganisms
Log Phase
Exponential phase of microorganism growth
Precursor
Substance that is needed to start a metabolic pathway
Secondary metabolites
Substance produced during the stationary phase of growth of a culture of microorganisms
Stationary Phase
Phase of microorganism growth during which secondary substances are made
Sterile
Conditions which do not contain contaminating microorganisms
Total Cell Count
Total number of cells in a culture (Viable and non viable)
Viable Cell Count
Number of live cells from a total cell count
