Metabolism and Nutritional ~

10^th December 2014

Today we have learnt about Microbial metabolism and microbial nutrition.

In metabolism we have anabolic and catabolic reaction. Anabolic is the synthesis a complex molecule from the simplest molecule while catabolic is breaking down complex molecule into simplest molecule.

I also learnt about the enzyme component that is apoezyme, haloenzyme and cofactor. Enzyme are very specific in order to undergoes reaction. The factor that influenced the enzymetic activity are temperature, pH, substrate concentration, competitive and non competitive inhibition.

We also learnt the energy production. There are two aspects of energy production that is concept of oxidation-reduction, and mechanism of ATP generation.  We also learnt about the cellular respiration aerobic , anaerobic respiration and fermentation.

Aerobic respiration involve oxygen and involve glycolysis, transition state, Kreb’s cycle, ETC and chemosmosis. While fermentation involve lactic  acid fermentation and alcohol fermentation.

There are two major nutritional concerns that is source of carbon and source of energy. 

Energy sources divided into two that are :

·         Chemotroph (inorganic/organic material)

·         Phototroph(light)

Carbon sources involve :

·         Autotroph(self feeders)

·         Heterotrophy (feed on others)

Reducing equivalent sources involve :

·         Litho- (inorganic)

·         Organo- (organic)

Actually I confused when we have to use the litho or organo  and we have don’t use it.

That’s all for today, BYE!