Prokaryotes Flashcards
What is the average size of bacteria?
0.5um-5um.
Do bacteria have cell walls?
Yes.
What are bacterias cell walls made of?
Polysaccharides.
What are the three most common shapes of bacteria?
Spherical- cocci
Rod shaped-Baccilli
Spiral-spirilli
What do most bacteria contain?
1 circular genome, ribosomes, cell walls and cell membrane
What type of microscopy is used to visualise microbes?
Fluorescence and dark field.
What does taxis mean?
Is the movement of an organism away or towards a stimulus.
What are the components of the flagella?
Made of proteins, Hook, filament and motor.
Where are prokaryotes chromosomes found?
In a nucleoid in the cytoplasm
What is a divisisome?
A bunch of rings that wrap around the middle of a dividing prokaryote, made of tubulin proteins.
What did eukaryotes descend from?
Archaea-their exons
Prokaryotes-their protein encoding regions
What does chimera mean?
The nucleus of eukaryotes for example, has 2 origins, archaea and bacteria.
What feature of chloroplasts is similar to prokaryotes?
The inner membrane.
What shapes could a virus be?
A corsehedral shape
Spherical
Rod shapes
What might a cell have on its surface?
Proteins, such as glycoproteins.
