L39 Microbial growth and behaviour (Winogradsky column)

Organisms which carry out fermentation are ❌. Their energy source, carbon source, and electron donor, are always ❌ (organic molecules) and sometimes are even the same molecule. An example of ❌ are cellulose degrading bacteria, which break pyruvate down into ❌ and simultaneously degrade cellulose into ❌. Other examples include clostridium and ❌ bacteria.

Microbial growth in a ❌ culture system is not like nature, in that it is a 'Feast and ❌' situation controlled by the examiner. There are four stages which characterise the growth ❌ for bacteria in this system.
Firstly, there is a ❌. It is shown as little to no change in the population size. The lag period ❌ on how much the inoculum must evolve and adjust before it is suited to the environment/has the proper ❌ taking place.
The next phase is the ❌. During this phase there are ❌ or competition and so the bacterial population can ❌ in size every generation via binary fission, displaying exponential population growth.
The next phase is the ❌. This appears to be a stable population size, but does not indicate static activity. Instead, it reflects the cryptic growth of the organisms. Cryptic growth is the state of ❌ equilibrium where organisms survive by feeding from the lysed, dead bodies of deceased organisms.
Finally, there will be a ❌ where the population size decreases until it is at a stable end point.