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Grade 7 Health Test
Digestive System
Question | Answer |
---|---|
What type of digestion are the teeth responsible for? | Mechanical or physical digestion |
What is the name of the flap of tissue that prevents food from entering the trachea? | epiglottis |
What is the wavelike contracting and relaxing of muscles called? | peristalsis |
What is the name of the acid in the stomach? | hydrochloric acid |
Where are villi found? | small intestine |
Where are nutrients absorbed? | small intestine |
What keeps food in the stomach until it is ready to leave? | the sphincters (rings of muscles) |
where is bile made? | liver |
Name one enzyme. | maltose, amylase, Protease or Lipase, Renin, Pepsin |
Where is bile stored? | gall bladder |
what are carbohydrates (starches) broken down into by digestion? | sugar (simple molecules) |
What are proteins broken down into? | amino acids |
What are fats broken down into? | fatty acids |
Where does chemical digestion begin? | The mouth |
What is a bolus? | A ball of food |
Where does chemical digestion end? | small intestine |
What is the function of the saliva? | It moistens food |
What is chyme? | A creamy white liquid that passes from stomach to small intestine. |
What is the function of bile? | It emulsifies fat & neutralizes the acid from the stomach. |
What are enzymes? | Organic chemicals that speed up rates of reaction. |
Where is food mixed with gastric juice? | salivary glands |
Where is bile produced? | liver |
Area that is lined with many finger like villi | small intestine |
where does absorption of food take place? | small intestine |