Term
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Definition
| organism that cannot make its own organic food molecules and must obtain them by consuming other organisms or their organic products |
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Term
| what are the 4 stages of food processing? |
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Definition
1. ingestion
2. digestion
3. absorption
4. elimination |
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Term
| what are the two types of digestion? |
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Definition
mechanical - breaking into small pieces
chemical - enzymes breaking down food particles |
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Term
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Definition
any enzyme that catalyzes or speeds up the hyrolasis reaction
ex. lipases, lactase |
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Term
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Definition
| enzyme that hydrolyzes starch |
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Term
| chemical digestion in stomach |
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Definition
gastric jucies - strong acid - HCl
pepsin - digests proteins
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Term
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Definition
| major organ for chemical digestion and absorption |
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Term
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Definition
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Term
| what allows small intestine to absorb minerals? |
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Definition
filled with villi, microvilli - more surface area
more surface area = more absorption |
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Term
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Definition
also called colon - shorter than small intestine - twice as wide
absorb water |
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Term
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Definition
| substances that an organism must absorb in pre assembled form because it cant synthesize the nutrient from any other material - vitamins, minerals, amino acids, fatty acids |
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