1 / 21

Nutrition and Types of Digestion Explained

This topic explains the importance of nutrition and the two types of digestion, autotrophic and heterotrophic. It covers the processes involved in digestion and the role of mechanical and chemical digestion. Students are encouraged to review and answer questions related to nutrition and digestion.

rirvin
Download Presentation

Nutrition and Types of Digestion Explained

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Topic: NutritionAim: Explain nutrition & the 2 types of digestionDo Now: Protists QuestionsHW: Coloring Activities due Monday.(Cut out five food labels of foods you eat regularly. Bring them in by Wednesday.)

  2. Review: • Ameba ingest large pieces of food by the process of _______. • Once food is ingested by a paramecium, the food is surrounded by a _________. • A paramecia uses ________ for movement and capturing food. • The process which moves cytoplasm around the protist is known as _______. • Some protists remove excess water with the help of _______. • Paramecia expel wastes through the ____.

  3. http://www.youtube.com/watch?v=8sjAf1o1I9Y

  4. Nutrition When organisms take in & use materials needed for energy & all life processes

  5. 2 types of nutrition 1.Autotrophic Nutrition: produce food from substances taken from the environment

  6. Examples of autotrophs: Plants, Algae (Photosynthesis)

  7. 2. Heterotrophic nutrition: • Organisms must ingest food already made in the environment

  8. 3 processes involved in heterotrophic nutrition: • Ingestion: take IN food

  9. Digestion: breakdown of food • Egestion: removal of undigested food (solid waste)

  10. Mechanical Digestion • Large pieces of food are broken down into smaller pieces

  11. Increases surface area of food to speed up chemical digestion

  12. Example: Teeth

  13. COMPLEX molecules (carbs, proteins, lipids) are broken down into smaller molecules Chemical Digestion

  14. HOW? By using digestive enzymes

  15. Carbohydrates  simple sugars (glucose)

  16. Proteins  amino acids

  17. Lipids  glycerol and fatty acids

  18. Review: • During nutrition, explain what the substances taken from the environment are used for. • Explain the difference between autotrophic and heterotrophic nutrition. • Explain the difference between mechanical and chemical digestion. • Where does mechanical digestion occur in our bodies? Chemical digestion?

  19. Identify the type of nutrition and digestion that is being described. • Food is broken down into smaller pieces. • Organisms make their own food. • Carbohydrates are broken down into simple sugars. • Increases surface area for chemical digestion. • Proteins are broken down into amino acids. • Teeth are used to break down food. • Enzymes are used.

More Related