Answer Happy

Name: TOTAL = /28 UNIT 4A: BIOCHEMISTRY & DIGESTION Topic 2 Review: Digestion 1. Match each of the following terms with the correct definition: (13) a) Physical digestion Where the majority of nutrient absorption occurs. b) Chemical digestion Breaks down starches into simple sugars. c) Lipase Protein-digesting enzyme produced by the pancreas. d) Peristalsis Increases the surface area on which enzymes can act. e) Amylase The breakdown of macromolecules by enzymes. f) Small intestine Where carbohydrate digestion begins. g) Pepsin Produced by the liver, stored in the gall bladder. h) Gastric juice Muscle contractions which act to move food through the digestive tract. Required to neutralize gastric juice when it enters the small intestine. i) Villi j) Trypsin Increases the surface area through which digested nutrients can be absorbed into the bloodstream. k) Bicarbonate ion Has a pH of 2-3 1) bile salts Enzyme produced by the stomach; begins protein digestion. m) Mouth Digests triglycerides into glycerol & fatty acids.