Digestion_36

Digestion_36 - Course objectives • Understand how living...

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Unformatted text preview: Course objectives • Understand how living and non-living environments are interrelated • Understand how cells function • Understand how the human body functions • Understand principles of heredity Digestion & Nutrition Chapter 36 Outline • Nutrition introduction • Food processing overview • Digestive system • Nutrition requirements • Nutritional disorders Animal Diets • Characterized by dominant food resource • 3 main categories – Herbivores – Carnivores – omnivores Nutrition Introduction • Heterotrophs • Provides molecules body Needs to function Food Processing Food Processing • Stages of food processing – Ingestion – Digestion – Absorption – elimination Ingestion • Intake of food source ie organic & inorganic molecules – Food, water & minerals • Physical action Digestion • Break down of food • Mechanical & chemical digestion Mechanical Digestion • Physical process • Physical reduction of food size • Tongue, teeth, churning (mixing) of stomach & intestine • Mechanical digestion – Break down of food to smaller units Mechanical Digestion Chemical Digestion • Break down of food • Secretion – Production & release of digestive chemicals & enzymes • Chemical digestion – chemical & enzymatic breakdown of ingested particles • Absorbable units- monomers – Monosaccharides – Amino acids – Fatty acids Chemical Digestion...
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Digestion_36 - Course objectives • Understand how living...

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