In the following cell organelle of multicellular organism, intracellular digestion occurs. 

Amylase act on 

Micro-organisms present in the ruminant stomach helps in fermentation of glucose and produce 

pH is the concentration of ions of 

Conversion of complex food molecules into simpler ones is called

True stomach is

Fully digested food is sent to

Inactive form of pepsin is

Killing of bacteria occurs in 

Largest chamber in the digestive system of ruminants is