1) Which of the following is not the reason why we need food?  a) provide us with energy for our daily activities like walking, b) produce heat to maintain our body temperature; c) maintain a healthy body; d) grow new cells and tissues; e) repair worn out tissues; f) multiply into new cells. 2) What are not the three main types of nutrients in food?  a) carbohydrates b) proteins c) vitamins d) lipids e) fats 3) Which of the following are not examples of carbohydrates?  a) glucose b) starch c) peptide d) maltose e) lactose f) cellulose 4) Which of the following sentence is false?  a) One starch molecule is made up of many glucose molecules.  b) One starch molcule is made up of many maltose molecules.  c) One protein molecule is made up of many amino acids molecules.  d) One fat molecule is made up of many fatty acids and a glycerol molecule.  5) Protein is not needed for:  a) build new cells for body growth and for the repair of worn-out tissues b) make more complex proteins such as enzymes c) insulate our body against too much heat loss d) provide us with twice as much energy as carbohydrates 6) What is digestion?  a) process of breaking down of large, complex, insoluble food molecules into smaller, simpler and soluble molecules. b) process of producing energy from glucose c) process of removing of carbon dioxide and taking in oxygen.  7) Which of the following statement is false? a) Nutrients like glucose and amino acids, are small, soluble molecules. b) Glucose and amino acid can pass through the cell membrane. c) Nutrients like starch, proteins and fats, are large, complex molecules d) Starch, protein and fats can pass through the cell membrane.

14.1 Function of Digestive System

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