Microbial physiology Flashcards
the scientific study of functions and mechanisms in a living system
physiology
concerns the vital life of processes of microorganisms
microbial physiology
bacterial physiology includes what?
- nutrition
- environmental factors affecting survival of bacteria
- growth and multiolication
- metabolism
bacterial growth
increase in size and no. of cells
group of cells large enough to be seen without a microscope
colony
bacteria which can synthesize their own food
ex: algae, cyanobacteria
autotrophs
bacteria which cannot synthesize their own food
heterotrophs
what are the different types of heterotrophic bacteria?
- parasitic
- saprophytic
- symbiotic
they derive their food from living organisms
parasitic
they feed in dead and decaying organic matter
saprophytic
they live in a symbiotic association with other organisms
symbiotic
what are the organism that produces their own food
- plants
- algae
- some bacteria
- phytoplankton
what are the organism that does not make their own food
- fungi
- animals
- most protozoa
- most bacteria
uses photosynthesis or chemosynthesis
autotrophs
get proteins and energy
heterotrophs
how do autotrophs produce their own food? (plants and bacteria)
plants
- photosynthesis
-chloroplasts
bacteria
- chemosynthesis
allows plants to produce nutrients from light
chloroplast
anong ginagamit sa chemosynthesis in producing their own food?
methane or hydrogen sulfide along with oxygen to produce carbon dioxide and energy
methane/hydrogen sulfide~oxygen~carbon dioxide~energy
use light
phototrophs
use either inorganic or organic chemicals
chemotrophs
use inorganic chemicals
chemolithotrophs
use organic compounds
chemoorganotrophs
use CO2 as their energy source
autotrophs
use light energy and CO2
photoautotrophs
use light and organic compounds
photoheterotrophs
use organic compounds as their carbon source
heterotrophs
use chemicals as an energy source and CO2 as a carbon source
chemoautotrophs
use chemicals as energy source and organic compound
chemoheterotrophs
what is the energy source of photoautotroph?
light
what is the carbon source of photoautotroph?
CO2/carbon dioxide
examples of oxygenic photoautotroph?
cyanibacteria, algae, plants
examples of anoxygenic photoautotroph?
green, purple, bacteria
energy source of photoheterotroph?
light
carbon source of photoheterotroph?
organic compounds
ex. of photoheterotroph?
green, purple nonsulfur bacteria
energy source of chemoautotroph?
chemical
carbon source of chemoautotroph?
CO2/ carbon dioxide
ex. of chemoautotroph
hydrogen, iron, sulfur, nitrogen, and carbon monoxide- oxidizing bacteria
energy source of chemoheterotroph
chemical
carbon source of chemoheterotroph
organic compounds
ex. of chemoheterotroph
fermentative bacteria, animals, protozoa, fungi, bacteria
