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science digestion
| Question | Answer |
|---|---|
| Digestion | The process of breaking food down into nutrients the body can use |
| Where does digestion begin | In the mouth |
| whta are the two types of digestion | mechanical digestion and chemical digestion |
| Describe mechanical digestion | when food is physically broken down into smaller pieces |
| Describe chemical digestion | When enzymes and other chemicals break down large food molecules into smaller ones the body can use |
| how are teeth used in digestion | they mechanically break apart the food |
| how do salivary glands help the process of digestionin our mouth | they secrete mucus that lubricates and holds food together |
| how does chemical digestion happen in the mouth | enzymes found in saliva chemically break down starches into sugars |
| what is the function of your epiglottis | It is a flap of tissue that covers the windpipe when you swallow |
| what is the esophagus | The esophagus is a pipe-shaped tube into which the food is forced after swallowing. It transports the food into your stomach |
| what is peristalsis | Powerful waves of muscle contractions that push food through the digestive system |
| what are three things that happen in the stomach | 1.protein digested 2.kills bacteria 3. liquefies food and is called chyme |
| why are the mucus glands in the stomach important | they secrete thick mucus that protects the stomach lining from the acid |
| What shape is the stomach | the stomach is a j-shaped muscular organ that mashes food into a liquid |
| what is the main digestive organ | small intestine, most of the digestion takes place here. Most absorption of nutrients happen here |
| How is food pushed through the small intestine | peristalsis, wavelike contractions that push food |
| how do cells that line the walls in the small intestine help in the digestion process | they release special enzymes that chemically break down the food |
| how do the liver and pancreas help the process of digestion | they produce enzymes that are secreted into the small intestine to break down food and fat. Bile is made in the liver and secreted through the gall bladder |
| villi cover the wall of the small intestine. What is there function | these finger-like projections absorb the nutrients and pass them to the blood vessels that carry them to other parts of the body |
| what does the large intestine do | this part of the digestive track takes water out of the undigested food, which then forms a solid waste |
| what are enzymes and protiens | protiens that chemically break large food molecules into smaller molecules during digestion |
Created by:
Jlevine
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