MOD 7 microorganisms Flashcards
how long has micro organisms been on earth
3.5 billion years
the study of microorganisms is also known as …
microbiology
what is an extremophile ?
a microorganism that is able to survive very harsh conditions
what color does dunaliella algae make the water ?
pink
define saline
salty water
in what environment do hyperthermophiles live ?
in a very hot environment
in what environment do psychrophiles live ?
in a very cold environment
3 organisms that are psychropillic ?
1 fungi
2 bacteria
3 algae
what does gray measure ?
the measurement of radiation
define unicellular
composed of only one cell
what are 2 characteristics of fungi
1 eukaryotic [ which means they have a nucleus]
2 most fungi are heterotrophs [ means they do not contain chlorophyll and do not produce their own food like other plants ]
define protists
a vast collection of single celled and multicellular organisms that have a nucleus
two types of protists ?
1 protozoa - animal like protist
2 algae - plant like protist
name 6 characteristics of protists
1 can be aquatic
2 usually unicellular but can be multicellular
3 they are microscopic
4 the plant like ones are autotrophic
5 animal ones are heterotrophic
6 some are pathogenic
name 6 characteristics of a virus
1 noncellular
2 not alive
3 must infect a host to reproduce
4 viruses are the smallest among organisms
5 viruses can infect humans plants and even bacteria
6 viruses are pathogenic
