Flashcards in Prokaryotes Deck (52)
Name the 2 prokaryotic domains
_____________ are found in harsh environments
Examples of harsh environments in which archaebacteria are found
Very saline places; hot place
What group is referred to as the true bacteria
What cell structures are lacking in prokaryotes?
Do bacteria have ribosomes like other types of cells?
Describe the genetic material of bacteria. Where is it found?
DNA; it floats in the cytoplasm
What surrounds the outside of all bacterial cells?
Cell walls of true bacteria contain _____________
Beside the circular chromosome, where else can DNA be found inside a bacterial cell?
What is the size of most bacterial cells?
most bacteria act as a _________
How can some bacteria be harmful?
What does motile mean?
Motile bacteria may have one or more _______ for movement
What are bacterial pili?
Hair-like appendages used for reproduction
What are pili used for?
gene transfer and sticking to surfaces
What is spiral shaped bacteria?
What is rod shaped bacteria?
what is round shaped bacteria?
How do the walls of archaebacteria differ from true bacteria?
do not contain peptidoglycan
How do the cell membranes of archaebacteria differ from true bacteria?
archaebacteria cell membranes contain hydrocarbon instead of fatty acids
do archaebacteria and eubacteria have the same ribosomes?
Do archaebacteria require oxygen?
Methanogens live in _______ environments. What is lacking in this environment?
How do methanogens get their energy?
What is methanogensis?
the process in which a methanogen uses carbon as an electron accepter to produce methane
The _________ live in very salty environments
___________ live in extremely hot environments