Dynamics of Prokaryotic Growth

These flashcards cover key vocabulary terms related to the dynamics of prokaryotic growth.

Binary Fission

A method of asexual reproduction in prokaryotic cells where the cell divides into two identical cells.

Exponential Growth

A phase of growth in which a population doubles in number at regular intervals.

Generation Time

The time it takes for a population to double.

Biofilms

Polysaccharide-encased communities of bacterial cells that provide structural organization.

Psychrophile

An organism that thrives in cold environments, typically between -5°C and 15°C.

Thermophile

An organism that prefers hot environments, typically between 45°C and 70°C.

Obligate Aerobe

An organism that requires oxygen for survival.

Facultative Anaerobe

An organism that can grow in the presence or absence of oxygen.

Limiting Nutrient

A nutrient that is in short supply, restricting the growth of organisms.

Reactive Oxygen Species (ROS)

Chemically reactive molecules containing oxygen that can damage cell structures.

Superoxide Dismutase

An enzyme that protects against oxidative stress by inactivating superoxide radicals.

Catalase

An enzyme that decomposes hydrogen peroxide into water and oxygen.

Nutritional Requirements

The essential elements and compounds that organisms need for growth and reproduction.

Complex Medium

Growth medium that contains a mixture of organic materials and nutrients.

Selective Medium

A growth medium designed to suppress the growth of some microorganisms while allowing others to grow.