microbiology chapter 1 summer session Flashcards
what are microbes?
are tiny living things that individually are not visible with the naked eye
what is categorized into the group of microbes?
protozoa, fungi(yeasts and mold), microscopic algae, viruses, and some noncellular entities that are unclassifiable
the process by which microbes produce acetone and butanol was discovered by ?
chaim weizzmann
samonella enterica (bacteriums)
found in the intestines
streptococcus pyogenes (bacterium)
forms pus
saccharomyces cerevisiae (yeast)
fungi, makes beer
penicillin chrysogenum (fungus)
tuftlike or paintbrush appearance, produces a yellow pigment
trypanosona cruzi (protozoan
corkscrew
peptidoglycan
bacteria are usually enclosed in cell walls that are largely made of carbohydrates and protein
archaea
are single celled organisms that are microscopic and does not have a peptidoglycan structures
three main types of archaea
methanogen, extreme halophiles, extreme thermophiles
fungi
eukaryotes that can be multicellular or unicellular, and whose cells has a distinct nucleus that contains the DNA
true fungi
have cells walls made out of chitin,
what is the most common type of fungi?
mold!
mycelia
large masses of mold, with long filaments called hyphae that lace together
protozoa
unicellular eukaryotic microbes move via pseudopods, flagella, or cilia, can have many shapes, live free or as a parasite, asex/sex repro.
algae
are photosynthetic eukaryotes with a variety of shapes, abundant in fresh, and salt water, soil, and with plants, cell wall common cellulose
viruses
very small, need electron microscope to see, acellular, protein and RNA?DNA viruses need a host to be considered living, and are only capable of reproducing using the mechanisms of host
multicellular animal parasites
eukaryotes, and usually multicellular, and roundworms and flatworms are 2 major groups, helminths
which groups of microbes are prokaryotes?
bacteria and archae
which groups are eukaryotes?
algae, fungi, protozoa, multicellular animal parasites
bacteria
cell wall contains a carbohydrate protein complex called peptidoglycan,
archae
if it has a cell wall it lacks peptidoglycan
eukarya
protists, fungi, animals, plants
protists
slime mold, protozoa, and algae
fungi,
unicellular yeasts, multicellular molds, and mushrooms
animals
sponges, worms, insects, and vertebrae
plants
mosses, ferns, cornifers, and flowering plants
what are the three domains?
Bacteria, Archae, Eukarya
biogenesis
is the idea that living things can only arise from other preexisting living cells,
aspetic techniques
procedures and techniques that prevent contamination by unwanted microorganisms
germ theory of disease
that microorganisms might cause disease