Animal Nutrition • Nutrients• Carbohydrates• Fats• Proteins• Vitamins C and D• Calcium• Iron• Fiber• Ingestion• Egestion

• Minerals (Salts, Calcium and Iron)

• Balanced Diet• Starvation• Metabolism• Digestion• Absorption• Assimilation• Malnutrition• Villi

Vitamins and Minerals

Nutrition

• Taking in nutrients which are organic substances and mineral ions, containing raw materials or energy for growth and tissue repair, absorbing and assimilating them.

• http://www.youtube.com/watch?v=s06XzaKqELk

Balanced Diet

• A well-balanced diet provides enough energy and nutrition for optimal growth and development.– New York Times

Malnutrition

• Malnutrition is the condition that occurs when your body does not get enough nutrients.– Starvation (not enough nutrients)– Coronary Heart disease (Too much fats)– Constipation (not enough fiber)

Human Digestive System

• Digestion is the breakdown of nutrients to a level that can be used by cells of the body.

• Structures– GI tract (mouth, pharynx, esophagus, stomach,

small intestine, large intestine)– Accessory (teeth, tongue, salivary glands, liver, gall

bladder, pancreas)

BioEd Online

Human Digestive System Diagram

Villi

Mouth

Liver

Pharynx

StomachLarge Intestine

Small Intestine

Esophagus

BioEd Online

Mechanical and Chemical Digestion

• Mechanical– Chewing

• Teeth

– Peristalsis• http://www.youtube.com

/watch?v=rJS-Kh5wCQU

• Chemical– Alimentary Canal

• http://www.youtube.com/watch?v=ZeUlh9Cou38– (only watch until you

hear what an alimentary canal is)

– Enzymes• Amylase• Protease• Lipase

Teeth

• Incisors – cutting

• Canine – tearing

• Premolars and Molars- Grinding

Amylase

• In human saliva

• Breaks down starches into sugars.

• Located in your mouth.

Saliva

Protease

• Breaks down Protein– (get it PROtease -> PROtein)

• Is in your pancreas.

Lipase

• Breaks down fat• Found in your stomach

Absorption

• The movement of digested food molecules through the wall of the intestine into the blood.

Assimilation

• Movement of digested food molecules into the cells of the body where they are used becoming part of the cells.

Ingestion

• The process of taking in food

Egestion• The removal of undigested food.