Which system is responsible for breaking down food into nutrients?, A. Respiratory System, B. Digestive System, C. Circulatory System, D. Nervous System, What is the moist lump of chewed food called?, A. Chyme, B. Stool, C. Bolus, D. Bile, What liquid is produced in the mouth to help soften food?, A. Bile, B. Saliva, C. Acid, D. Mucus, What process pushes food down the esophagus?, A. Diffusion, B. Absorption, C. Peristalsis, D. Filtration, Which organ churns food and mixes it with acid?, A. Liver, B. Stomach, C. Pancreas, D. Gallbladder, What is the semi-liquid mixture formed in the stomach?, A. Bolus, B. Enzyme, C. Chyme, D. Plasma, Which organ produces bile?, A. Gallbladder, B. Pancreas, C. Liver, D. Small Intestine, What is the function of bile?, A. Break down proteins, B. Digest fats, C. Absorb glucose, D. Produce enzymes, Where does most nutrient absorption occur?, A. Stomach, B. Esophagus, C. Small Intestine, D. Large Intestine, What are the tiny projections in the small intestine that increase surface area?, A. Alveoli, B. Nephrons, C. Villi, D. Capillaries, Which organ stores and concentrates bile?, A. Liver, B. Gallbladder, C. Pancreas, D. Colon, What is the first part of the small intestine?, A. Ileum, B. Jejunum, C. Duodenum, D. Rectum, What does the large intestine mainly absorb?, A. Proteins, B. Fats, C. Vitamins, D. Water, What is the temporary storage area for stool?, A. Colon, B. Rectum, C. Anus, D. Duodenum, Through which structure does waste exit the body?, A. Urethra, B. Rectum, C. Anus, D. Esophagus.

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