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Apologia General Science Module 13
| Question | Answer |
|---|---|
| What does the liver produce? | The liver produces bile. |
| What is the most complicated organ in the digestive system? | The liver. |
| What is bile? | Bile is a mixture of chemicals that prepares fats for digestion. |
| Which organs are NOT a part of the digestive tract? | The liver, pancreas, and the gall bladder are NOT parts of the digestive tract. |
| What is one thing that the liver does? | The liver warms up the body's blood. |
| What length (in inches) is an adult human's pancreas | It is roughly 5 inches long. |
| What are the 2 main functions of the pancreas? | 1. it makes juices that are squirted into the small intestine 2. It produces a base called "sodium bicarbonate" which is better known as "baking soda". |
| Waste is expelled through what? | The anus |
| Is the appendix useless? | No, although scientists once thought it was. |
| What is the appendix useful for? | It is useful for storing beneficial bacteria when a disease threatens to wipe them out. After the disease is over, they will "repopulate" the intestines once more. |
| What are the fat-soluble vitamins? | Vitamins A, D, E, and K are all fat-soluble |
| Which vitamins (fat-soluble or water-soluble) are most likely to build up toxic levels in the body? | Fat-soluble vitamins |
| What role do most vitamins play in the body? | Vitamins regulate the chemical processes in the cells |
| Which 2 vitamins can the body absorb without eating food that contains those vitamins? | Vitamins D and K |
| Is the inside wall of the small intestine smooth or rough? | Smooth |
| Which 3 parts is the large intestine composed of? | The cecum, the colon, and the rectum. |
| What is the main function of the stomach? | To absorb water that is in the chyme |
| Are vitamins effective in large amounts? | No, you should only consume vitamins in small portions. |
| Where does your saliva come from? | Your salivary glands |
| Your tongue molds the food you eat into a soft lump called what? | A bolus |
| The stomach lining makes what? | Juices that help to digest the food that you eat. |
| Most people call these "gums", but what is the scientific name for these? | The scientific name is "gingiva". |
| What is the inside wall of the small intestine covered with? | Millions of projections called "villi". |
| The bacteria that live in your large intestine feed on what? | They feed on the chyme as it travels through the large intestine |
| What do the beneficial bacteria that live in your large intestine produce? | They produce chemicals like vitamins that are useful to your body |
| In the stomach, the bolus is mixed with a liquid called what? | Gastric juice |
| Where the bolus is mixed with a liquid in the stomach, what is the most important chemical in that liquid? | hydrochloric acid |