prokaryote Flashcards
which cell shapes remain attached after division?
rod sphere
gram + vs gram - cell wall?
gram-(+): thick multilayered of glycan; techoic acid binds for vidiability
gram-(-): inner (phospholipid bilayer$
outer (lipopplysacx k peptide A)
periplasm
proin creates pores for small molec
what does nucleoid contain?
single, circular chromosome.
could be haploid or genome
small circular molec of DNA are found in many prokaryotic cells
Replicate independently of bacterial chrom
plasmid
what dies cell wall composed of?
long strands of peptidoglycan
- long disacc trands
- alternating NAG NAM molec
side chain
peptide cross bridge
organelles involved im cell reproduction?
ribosome (translational machine), nucleoid, inclusion, plasmid (small circular molecule of dna) within cell xytoplasm
what is quorum sensing?
cellular communication
alters gene expression
as biofilm develos and matures, interior cell becomes biochemically different from edge cells
2 ways to refer to glycolcalyx?
capsule when bound to cell wall
slime layer when thinner layer
construction of flagella?
hook and filament connect to base, powered by proton diffusion for tumbling and pole