List the ingredients used to culture bacteria. and why is the removal of feaces not regarded as excretion?

The main ingredient is agar (gelatinous substance prepared from seaweed). Some nutrients, antibiotics, blood etc. are added depending on the type of organism grown.





Removal of metabolic wastes like urine, sweat and carbondioxide through lungs is called excretion. It also involves regulation of water, minerals and blood pH.


Feaces is not a metabolic waste. It is a part of the digestive process. That is why it is not regarded as excretion.

List the ingredients used to culture bacteria. and why is the removal of feaces not regarded as excretion?
Normally you'll use agar with nutrients mixed in to culture the bacteria, not sure about exact ingredients.





Excretion is a waste product of the body - faeces goes through the body without being absorbed and goes out the other end, so to speak - this is termed egestion.

camellia