Powerpoint 13 - digestion and nutrition

Powerpoint 13 - digestion and nutrition - Animals:...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Animals: Digestion and Nutrition Outline 1. Key concepts 2. Nutrition 3. Comparison of different animals’ digestive systems 4. Human digestive system 5. Key terms 6. Conclusions Key Concepts Food can be: 1. Sources of energy a. Carbohydrates b. Fats c. Proteins 2. Sources of nutrients for growth and metabolism a. Proteins b. Minerals c. Vitamins d. Lipids Digestion – breakdown of food into molecules that can be absorbed by the body cells. Nutrition Undernourished – diet is deficient in calories Overnourishment – homeostasis of fat leptin and other genes “8” Essential amino acids
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
#9: histidine
Background image of page 2
Digestive systems of different animal types
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
1. Intracellular digestion – “Paramecium” 2. Simple sac – “hydra” Comparison Flatworm – Digestive cavity has only one opening, highly branched digestive cavity. They cannot feed, digest, and eliminate at the same time. Food cannot be processed continuously. Nutrient molecules come to cells by diffusion Earthworm – Digestive cavity has two openings. Food moves in one direction. The crop stores food. Gizzard grounds food. Intestine digests and absorbs nutrients. Circulatory system transports nutrients to all cells of the body. Grasshopper – Digestive cavity has two openings. Food moves in one direction. In the
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/25/2009 for the course BIO 311D taught by Professor Reichler during the Spring '08 term at University of Texas at Austin.

Page1 / 11

Powerpoint 13 - digestion and nutrition - Animals:...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online