Nutrition
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Nutrition

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Nutrition Nutrition Presentation Transcript

  • Aim : How can we describe the types of nutrition in living things? Do now : 1. What is nutrition? 2. Why do living things need nutrition?
  • Nutrition : How an organism gets food ( nutrients, organic compounds ) and makes it available to the cells. Nutrients : useful portion of food: -sugar -amino acid -fat -starch Organic Compounds = FOOD!!!!!!
  • 2 TYPES OF NUTRITION 1. Autotrophic nutrition – Auto (self) trophic (refers to feeding and nutrition) “ Self feeding.” -Organisms that make their own organic compounds ex. Photo synthesis Chemo synthesis
  • a. Photosynthesis Photo (light) synthesis (creating, making) -Light is the source of energy for the production of food. -“Who?” ex. Plants
  • Autotrophs :
  • b. Chemosynthesis – Chemo (chemical) synthesis (creating, making) -Chemical activity is the source of energy for the production of organic compounds. Who? -organisms in environments that do not rely on the sun to make food. ex. Deep sea organisms
  • Photosynthesis Chemosynthesis
  • Chemosynthetic nutrition - Deep sea tube worms and arthropod
    • So far…..
    • Nutrition :
    • Autotrophic:
    • a. photosynthesis
    • b. chemosynthesis
    • Autotrophs –
    • Organisms that can make their own food
    • by photosynthesis or chemosynthesis.
  • 2. Heterotrophic nutrition – Hetero: other trophic: (refers to feeding and nutrition) “ Fed by others.” - Heterotrophs: Organisms that eat organic compounds made by others. ex. Animals or animal-like protists called protozoa : amoeba, paramecium. Proto (first) zoa (animal, zoo)
  • Examples of heterotrophs paramecium
  • More heterotrophs….
  • Obviously, a _________________ . heterotroph!
  • Are you a heterotroph? Summary : 2 types of nutrition on Earth: 1. Autotrophic - photosynthesis - chemosynthesis 2. Heterotrophic
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