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Digestion PQ
| Question | Answer |
|---|---|
| Becasue of digestion, starch will be broken down into_____ | simple sugars |
| The food you eat has to be broken down into food your cells can use. This process is called ______ | digestion |
| Chemical reactions to begin the break down of big molecules of food are started by_____ | saliva |
| Where does the chemical digestion of starch begin? | In the mouth |
| What is saliva secreted by? | Salivary glands |
| What is a starch molecule? | A chain of sugar molecules |
| What is the tube connecting the mouth and stomach? | The esophagus |
| The muscles of the esophagus are____ | smooth |
| In the digestive system, the sphincter muscles control____ | the passage of food |
| Special proteins needed for digestion are called____ | enzymes |
| What is every single body process controlled by? | enzymes |
| How was Alexis St. Martin injured? | A gun accidentaly fired |
| Food is digested in the stomach because of _____ and ______ | churning and grinding, enzymes |
| Digestion of protein begins in the ______ | stomach |
| Because of digestion, protein will be broken down into _____ | amino acids |
| When stomach muscles contract, they cause___________ | the food to be churned |
| Which is not a function of the stomach? a.digestion of protein b.chruning and mixing of food c.storage of food d. digestion of fats | D |
| Bacteria are killed in the stomach by_____ | acids |
| The walls in the stomach are protected from acid by_____ | muscus |
| Where does the absorption of food begin? | the small intestine |
| Where is the digestion of food completed? | the small intestine |
| Because of digestion, fats will be broken down into_____ | fat molecules |
| Stomach acid is neutralized by juices from____ | the pancreas |
| The liver is located beneath the_____ | diaphram |
| Bile is an enzyme produced by the_____ | its not produced from anything since bile isnt an enzyme |
| Digestion of fats (chemically) begins here | small intestine |
| Bile is stored in the _____ and breaks apart_____ | gall bladder, fat |
| The surface are of the small intestine large due to a. its length, approximately 18-24 ft. b.its folded lining c. its lining covered with vili | all! |
| Where does the absorption of food occur? | in the villi |
| If a nutrient is NEEDED by a cell, the nutrient will be____ | broken down within the cell |
| What is moving from a place of high concentration to one of low concentration? | diffusion |
| Diffusion results in_____ concentrations of molecules on both sides of a membrane | equal |
| Cell membranes allow small molecules to enter a cell because the membranes________ | have very small openings |
| The lining of which digestive organ is smooth? | large of intestine |
| Where are the wastes from the digestive system stored? | The rectum |
| THe opening at the end of the digestive system is the ______ | anus |
| Where does no digestion occur? | the large intestine |
| The function(s) of the large intestine/rectum is/are a.digestion b.absorption of water c.storage of wastes | b and c |
| Which part of the digestive system has no known function? | The appendix |
| It may take up to ____ for good to travel through the human digestive system (hours,days,weeks,etc.) | 3 days |
Created by:
16dcohen
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