BIOL 203 Exam Study Questions and Answers Graded A

Which of the following statements is true? a) The body needs protein to make sodium, calcium, and other mineral elements. b) The human body normally uses very little protein for energy. c) Proteins are comprised of smaller chemical units called fatty acids. d) Proteins are comprised of phosphorus, oxygen, hydrogen, and carbon. - b) The human body normally uses very little protein for energy. Every amino acid has _ in its chemical structure. a) iron b) nitrogen c) potassium d) chloride - b) nitrogen Which of the following foods is a poor source of essential amino acids? a) Fat-free milk b) Peanuts c) Sesame seeds d) Apple - d) Apple Roberta is 25 years of age, healthy, and pregnant. Based on this information, her body is in _ nitrogen balance. a) negative b) positive c) inverse d) activated - b) positive An amino acid does not contain a (an): a) fatty acid b) nitrogen-containing group c) acid group d) carbon skeleton - a) fatty acid Which of the following foods is naturally a good source of high-quality protein? a) Red grapes b) Corn oil margarine c) Tuna fish d) Leaf lettuce - c) Tuna fish A person suffering from celiac disease must avoid a) eating foods that contain phenylalanine b) lying down after meals c) consuming foods that contain gluten d) taking dietary supplements that contain homocysteine - c) consuming foods that contain gluten A Scientist Isolates a water-soluble compound from spider venom. The substance has nitrogen, carbon, hydrogen, and oxygen in its chemical structure. Based on this information, the compound is probably a a) mineral salt b) triglyceride c) polysaccharide d) protein - d) protein Which of the following foods are legumes? a) Potatoes b) Onions c) Mushrooms d) Peanuts - d) Peanuts Bernard has been suffering from a viral infection for over a week. As a result of the illness, he has a fever and has lost his appetite. Based on this information, his body is in _nitrogen balance a) negative b) positive c) inverse d) deactivated - a) negative When combined, which of the following groups of foods forms a complementary protein dish? a) Cranberries, apples, and marshmallows b) Kidney beans, rice, and sesame seeds c) Peaches, bananas, and apricots d) Iceberg lettuce, carrots, and tomatoes - b) Kidney beans, rice, and sesame seeds _ is the process that changes the normal shape of a protein and, as a result, the molecule loses its usual functions. a) Filtration b) Hydrogenation c) Denaturation d) Protonation - c) Denaturation