Biology - 2.1.2 - structure of prokaryotic cells
what is the flagella?
long tails that rotate and propel the cell, sometimes more than 2 present
what are pili?
surface proteins that allow attachment to other cells and surfaces
what size are ribosomes in prokaryotes
70s
what is the cell wall made of in prokaryotes
murien (peptidoglycan)
where is genetic material in a prokaryote
dna found in a large circular strand bundled up, and in small plasmids which contain material for antibiotic resistance
are there membrane bound structures
no
what is a capsule?
a layer of polysaccharides around the outside that help to prevent against attacks such as digestion by phagocytosis
what is a plasmid
a loop of genes containing information for antibiotic resistance which can be passed between eukaryotes
what is a virus
an acellular and non living organism
what is a capsid
contains and protects the genetic material, infects genetic material of other organisms
what kind of genetic material does a virus have
either DNA - double helix shape, or RNA - single strand of genetic material
what are attachment proteins
aka envelope proteins, attach to a host cell and infects genetic material. different shapes bind to different types of proteins and cells.