BIMM 120 CH 4
those that must be supplied from the environment
specific nutrients found in growth medium
only found in the cytoplasm of eukaryotic cells
fix C02 and assemble it into organic molecules
use preformed organic molecules from autotrophs
chemoautotrophs are also known as
chemoheterotrophs are also known as
What do nitrogen fixers do?
Convert N2 to NH4+
What do nitrifiers do?
oxidize ammonia to nitrate
dentrifiers do what?
convert nitrate to N2
What are the two types of coupled transport systems?
symport and antiport
two molecules travel in the same direction
two molecules travel in opposite directions
found in all three domains of life and use ATP
type of active transport that uses energy to chemically alter the substrate during its transport
uses energy from PEP to attach phosphate to sugars so the sugars cannot leak back out of the cell and is metabolized
using a special slide with a microscope
can't tell if cell is living or dead
cells are stained
separation by charge
Steps of biofilm formation
dissolution and dispersal
Two main types of ABC transporters
uptake and efflux
What kind of growth rate is observed in bacterial cultures?
maintains logarithmic growth by removing and adding equal amounts of culture media
fruiting bodies of?
aerial hyphae of?
Myxococcus xanthus uses ___ to form fruiting bodies.
As nutrients decline, aerial hyphae divide into?
BIMM 120 CH 4