Chapter 5: Nutrition in Humans

Question 1

Nutrition

Answer 1

organisms obtain food for energy or growth, and maintenance of body

Question 2

Peristalsis

Answer 2

rhythmic, wave-like contractions in wall of alimentary canal

• enables food to be mixed with digestive juices, pushes food along gut

Question 3

Digestion

Answer 3

large food molecules broken down into smaller soluble molecules to be absorbed into body cells