bactera Flashcards
(23 cards)
What are prokaryotes also known as?
-unicellular organisms made from 1 prokaryotic cell
-no nucleus but have a dna
-no memberane bound organelle
What are Archaebacteria?
Monerans that live in harsh environments.
What are Methanogens?
Methane-producing archaebacteria that live in anaerobic environments.
They can be found in swamps, marshes, lake sediments, and the stomach of cows.
Where do Methanogens live?
In swamps, marshes, lake sediments, and the stomach of cows.
What role do Methanogens play?
They play a role in the breakdown of sewage in sewage disposal plants.
What are the characteristics of prokaryotes?
Bacteria are unicellular organisms made up of one prokaryotic cell, have no nucleus, and no membrane-bound organelles.
How many kingdoms of bacteria are there?
There are two kingdoms of bacteria: Archaebacteria (ancient bacteria) and Eubacteria (true bacteria).
What are Halophiles?
Salt-loving archaebacteria that live in salt pools left after a lake has evaporated.
These pools have high levels of magnesium and potassium salts.
Where can Halophiles be found?
In places like Utah’s Great Salt Lake and the Middle East’s Dead Sea.
Do antibiotics work with archaebacteria?
No, antibiotics don’t work with archaebacteria.
what are the archaebacteria also known as?
the extremists
what are the eubacteria known as
“true bacteria”
what are the three types of eubacteria
-heterotrophs
-photoautotrophs
-chemoautotrophs
what are the two kingdoms of prokaryotes
archaebacteria and eubacteria
what do heterotrophs use as food source?
organic molecules
what bacteria makes organic molecules
chemoautotrophs
what are heterotrophs?
parasite and saprophytes
where do photoautotrophs live
live in places with sunlights
what part of the bacteria is used for movement
the flagellum
what are the tiny hairs on bacteria called and what’s the functions
the pilli helps to attach to one another
how do chemoautotrophs obtain energy
by breaking down inorganic compounds called sulfur and nitrogen
where do chemoautotrophs live
plant root nodules
who discovered penicillin
alexander fleming in 1928
