Digestive System

Question 1

digestion

Answer 1

breakdown of food into a form that can be used by an animal. It includes both mechanical digestion and chemical digestion.

Question 2

mechanical digestion

Answer 2

digestion that uses physical factors such as chewing with the teeth

Question 3

chemical digestion

Answer 3

the chemical reactions changing food into simpler substances that are absorbed into the bloodstream for use in other parts of the body

Question 4

alimentary canal

Answer 4

passage from the mouth to the anus. Digestion of food occurs as it moves through the canal.

Question 5

enzymes

Answer 5

special chemicals that speed up reactions but are themselves not used up in the reaction