1) What does the digestive system do? a) The organs that break down food so that it can be used by the body b) It takes in oxygen and gets rid of carbon dioxide c) Your heart, blood, and blood vessels make up this system d) These organs produce, store, and eliminate urine 2) What does the digestive tract include? a) Mouth, pharynx, esophagus, larynx, trachea, bronchi, bronchioles, alveoli, and lungs b) Mouth, pharynx, esophagus, stomach c) Heart, blood, and blood vessels d) Mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, and anus 3) The liver, gallbladder, pancreas, and salivary glands: a) Are also part of the digestive system and food passes through these organs b) Are also part of the digestive system and food does not pass through these organs c) Are not part of the digestive system and food passes through these organs d) Are not part of the digestive system and food does not pass through these organs 4) Digestion is the process of breaking down food. An example of this is when a peanut butter and jelly sandwich is broken into a form that can pass through the bloodstream. What are the two types of digestion? a) Pulmonary and Systemic Digestion b) Central and Peripheral Digestion c) Mechanical and Chemical Digestion d) Salivary and Pancreatic Digestion 5) The breaking, crushing, and mashing of food is called mechanical digestion. In chemical digestion,  a) large molecules are broken down into nutrients b) large molecules are broken down into feces c) small molecules are broken down into feces d) small molecules are broken down into nutrients 6) Substances called ___________ break some nutrients into smaller particles that the body can use. a) Scissors b) Amino acids c) Proteins d) Enzymes 7) Where does digestion begin? a) Mouth b) Nose c) Stomach d) Esophagus 8) Saliva: a) The tube that connects the larynx to the lungs b) The area of the throat that contains the vocal cords and produces vocal sounds c) Main passageway into and out of the digestive system d) As you chew, food mixes with this; is made in salivary glands located in the mouth; contains an enzyme that begins chemical digestion of carbohydrates and changes complex carbohydrates into simple sugars 9) Stomach: a) The saclike, digestive organ between the esophagus and the small intestine that breaks down food into a liquid by the action of muscles, enzymes, and acids b) Breathing is made possible by this system and is made up of the nose, throat, lungs, and passageways that leads to the lungs c) Consist of sugars, phosphates, and a base d) Helps remove carbon dioxide from the body 10) Small Intestine a) The organ between the stomach and the large intestine where most of the breakdown of food happens and most of the nutrients from food are absorbed b) uses all four types of tissue to carry out digestion c) Works with the small and large intestines to digest food d) Made of cells that contract and relax to produce movement 11) Liver a) The largest organ in the body; it makes bile, stores and filters blood, and stores excess sugars as glycogen b) a sac-shaped organ that stores bile produced by the liver c) The wider and shorter portion of the intestine that removes water from mostly digested food and that turns the waste into semisolid feces, or stool d) The last part of the large intestine; stores feces until they can be expelled 12) The wider and shorter portion of the intestine that removes water from mostly digested food and that turns the waste into semisolid feces, or stool. a) Large Intestine b) Gallbladder c) Small Intestine d) Pancreas 13) Feces pass to the outside of the body through this: a) Anus b) Small Intestine c) Large Intestine d) Rectum

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