STUDY

Hcl is a strong acid but it is in our stomach its work is convert normal food into acidic food because can pepsin breakdown of protein into amino acid

1-ingestion - 2 digestion 3 absorption 4 Assimilation 5 egestion

ATP is the energy currency of our body. because energy is store in the form of atp in our body .

Photosynthesis- The biological processes by green plants from nutrients carbon dioxide + water in presence of sunlight and chlorophyll gives glucose + water oxygen . Absorb sunlight by chlorophyll. Then sunlight convert into chemical energy  breakdown of water molecules in hydrogen and oxygen  , after this process  carbon dioxide + hydrogen   = glucose .