Which best differentiates between chemical digestion and mechanical digestion?
Answer
A
Chemical digestion happens in the small intestine; mechanical digestion happens in the mouth.
B
Chemical digestion involves the breaking down of food with enzymes; mechanical digestion is breaking down food by chewing and tearing with teeth.
C
Chemical digestion is the breakdown of fats; mechanical digestion is the breakdown of proteins.
D
Chemical digestion is done only by the major structures of the digestive system; mechanical digestion is done by the accessory structures of the digestive system.