Microbial Growth Flashcards
Macronutrients
what cells require in large amounts
what do they require in large amount ?
- Carbon
- Nitrogen
- Hydrogen
- Oxygen
- Phosphorus
- Sulfur
- Potassium
- Magnesium
- Calcium
- Sodium
Micronutrients
what they require in trace amounts
what they require in trace amounts
-Iron: Fe2+, Fe3+
– Trace metals
Growth factors,they require?
-Vitamins
-Amino acids
-purines
-pyrimidines
other
why do they require that
can’t synthesize them
Some growth factors are the by‐product or waste
of another microorganisms
Growth of the population: increase?
number of cells or biomass.
Most prokaryotes multiply by
binary
fission
the cell grows in size until it
forms a partition (septum)
a partition (septum) that constricts the cells into
2 daughter
cells
Each daughter cell receives
-one copy
of the chromosome, ——sufficient
ribosomes, ——macromolecules,
monomers and other m
the generation time depends?
on the bacteria it’s not always the same
e.g E-coli?
20 min in lab
Cell division requires synthesis of ?
a new cell wall material
