1) Which of the following is one of the main elements found in food? a) Nitrogen b) Magnesium c) Iron d) Calcium e) Zinc f) Chlorine 2) Which of the following elements is found in dissolved salts? a) Zinc b) Nitrogen c) Carbon d) Hydrogen e) Sodium f) Sulfur 3) Which of the following is an example of a trace element? a) Hydrogen b) Oxygen c) Iron d) Potassium e) Nitrogen f) Phosphorus 4) Which of the following is not a biomolecule? a) Protein b) Carbohydrate c) Minerals d) Vitamins e) Lipids 5) The ratio of hydrogen to oxygen is: a) 1:2 b) 2:1 c) 1:2:1 d) 2:1:1 6) How many sugar units does a disaccharide have? a) 1 b) 3 c) 10 d) 2 7) Which of the following is a structural polysaccharide? a) Starch b) Glycogen c) Cellulose d) Glucose 8) The components of lipids are: a) amino acids b) monosaccharide c) Triglyceride 9) Where are phospholipids found? a) Cell wall b) Cell membrane c) Chloroplast d) nucleus 10) What is a triglyceride made of? a) 2 fatty acids, 1 phosphorus, glycerol b) 3 fatty acids and glycerol c) 2 fatty acids, amino acid, glycerol 11) Structural role of lipids is: a) component of cell membrane b) insulation c) Energy 12) Metabolic role of lipids: a) Source of energy b) Protection c) insulation 13) The elements found in proteins are: a) C, H, O b) C, H, O, Mg c) C, H, O, N 14) Basic unit of proteins: a) Triglyceride b) monosaccharide c) Amino acid 15) What determines the function of a protein? a) shape b) the number of amino acids c) the number of glucose 16) Metabolic role of proteins is: a) Enzymes b) Cell membranes c) Muscles

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