Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Why is the digestive system important? | It allows us to take in and process food so that we could provide our body with the nutrients and energy needed for metabolism.
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| Mechanical digestion. | Food is made smaller using teeth and tongue, physical breakdown.
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| Chemical digestion. | Food is broken down using enzymes.
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| Where does chemical digestion begin? | The mouth.
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| Where does the digestion of starches begin? | The mouth.
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| What enzyme breaks down starches in the mouth that is present in saliva? | Amylase.
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| Where does ingestion begin? | The mouth.
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| Another name for the mouth. | Oral cavity.
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| What do teeth do? | Mechanically break down food into smaller pieces.
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| What does the tongue do? | Mixes up chewed food and pushes it down the throat.
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| What do the salivary glands do? | Secrete saliva through a duct and into the mouth.
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| Esophagus. | Tube that connects the mouth to the stomach.
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| Wavelike contractions that move food down the esophagus. | Peristalsis.
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| Seals off the trachea while eating so food isn't accidentally inhaled. | Epiglottis.
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| Another name for windpipe. | Trachea.
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| Another word for throat. | Pharynx.
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| Function of the stomach. | A muscular organ that helps to liquefy and digest food while also secreting/releasing digestive enzymes.
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| Present in the gastric juices in the stomach, helps breakdown food, kills bacteria, and helps maintain a proper pH. | Hydrochloric acid.
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| Gastirc glands/Juices. | Enzymes.
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| Secretes mucus in the stomach. | Pyloric acids.
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| Where does final digestion occur? | Small intestine.
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| Where does the absorption of nutrients occur? | Small intestine.
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| Enzymes in the small intestine that help it break down proteins, lipids, and sugars. | Protease, Lipase, and Maltase/Sucrase.
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| True or False: Most chemical digestion occurs in the stomach. | False, the small intestine.
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| A lining in the small intestine that increases surface area and are covered in capillaries/blood vessels for absorbing digested materials. | Villi.
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| Where diffusion of nutrients occurs in the small intestine. | Capillaries.
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| Another name for the large intestine. | Colon.
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| Function of the large intestine. | Reabsorbs water and forms undigested material into semi-solid feces.
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| Where is feces stored? | In the rectum.
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| Where is the feces released and what is this process called? | Anus, egestion/defecation.
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| Alimentary canal. | The tube through which food passes, extends from the mouth to the anus.
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| Another name for alimentary canal. | GI Tract/Digestive tube.
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| Organs which the alimentary canal passes through. | Mouth, esophagus, stomach, small intestine, large intestine, rectum, anus.
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| Three accessory organs. | Liver, gall bladder, pancreas.
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| Function of the liver. | Produces bile to emulsify (break down into smaller droplets) fats.
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| Function of the gall bladder. | Stores bile.
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| Function of the pancreas. | Makes and stores the digestive enzyme, pancreatic juice.
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| End product of the breakdown of carbohydrates, fats, and proteins. | Simple sugars, fatty acids and glycerol, amino acids.
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| Where does the breakdown of protein begin? | Stomach.
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| Elimination of watery feces. | Diarrhea.
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| Disorder that results in dehydration. | Diarrhea.
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| Frequent evacuation of wastes. | Diarrhea.
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| Quick peristaltic activity. | Diarrhea.
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| Disorder where feces remains in the colon for too long. | Constipation.
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| Caused by little fiber and water in diet. | Constipation.
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| Sluggish peristaltic activity. | Constipation.
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| Small, hardened cholesterol deposits that form in the gall bladder, block the flow of bile and cause severe pain. | Gallstone.
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| Inflammation of the appendix. | Appendicitis.
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| An open, painful sore that erodes the stomach lining. | Ulcers.
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