Microorganisms (keywords) Flashcards
Define inoculate
use a vaccine to give immunity against a disease; vaccinate.
What is extracellular digestion?
The process where food particles are broken down (using enzymes) into smaller components outside the cell to be absorbed into the semipermeable membrane.
Define enzyme
Proteins that speed up the rate of a chemical reaction in an organism.
Define parasite
plants/animals that live on or in a host, getting their nutrients from that host.
Define pathogen
a microorganism that causes disease.
Define toxin
a poisonous substance produced within living cells or organisms.
Define hyphae
a filament in fungi that secretes digestive enzymes onto substrate.
Define aerobic
involving/relating to free oxygen
Define anaerobic
requiring an absence of free oxygen
Define sporangium
a reproductive structure in fungi that produces spores.
Define binary fission
the process by which bacteria reproduce.
Define spores
a spore is a reproductive cell. It can develop into an individual when certain conditions are present.
What is a vaccine?
a biological preparation that involves immunity to a particular disease.
