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Nutrition lesson 3 evolution of digestive systems.notebook 1 March 22, 2018 Mar 2412:07 PM Aim: Compare nutrition in different organisms as they increase in size and complexity. HW. Do take home quiz. Use it to study. Study posted vocabulary. 1. Go over homework. 2. Review nutrition 3. Comparison of some digestive systems

HW. Do take home quiz. Use it to study. Study posted ......Ameba / Amoeba unicellular Ingestion by endocytosis phagocytosis and pinocitosis (case of active transport) Digestion is

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  • Nutrition lesson 3 evolution of digestive systems.notebook

    1

    March 22, 2018

    Mar 2412:07 PM

    Aim: Compare nutrition in  different organisms as they  increase in size and complexity. 

    HW.  Do take home quiz.  Use it to study.  Study posted vocabulary.   

    1. Go over homework. 

    2. Review  nutrition

    3. Comparison of some digestive systems 

  • Nutrition lesson 3 evolution of digestive systems.notebook

    2

    March 22, 2018

    Mar 3012:32 PM

    Paramecium  (unicellular)

    Ameba / Amoeba unicellular 

    Ingestion  by endocytosisphagocytosis and pinocitosis (case of active transport)

    Digestion is intracellular in lysosomes (contain hydrolitic enzymes.)

    Digested products diffuse into cytoplasm.

    Egestion by exocytosis. 

    phagocytosis

  • Nutrition lesson 3 evolution of digestive systems.notebook

    3

    March 22, 2018

    Mar 3012:47 PM

    Hydra

    Through mouth, use for ingestion and egestion

    Two way digestive cavityDigestion is both extra cellular and  intracellular (phagocytosis) along cavity.

    Digested products are diffused into neighbor cells

    Ingestion

    Digestion

    Absorption

  • Nutrition lesson 3 evolution of digestive systems.notebook

    4

    March 22, 2018

    Apr 18:42 PM

    Digestion in the round worm:Adaptations:

    1. One way digestive system

    2. Organic digestion

    3. Primitive Stomach (gizzard)

    4. Internal fold increase surface for absorption. 

    Crop thin walled organ temporary stores food.

    Ingestion

    Digestion

    Absorption

  • Nutrition lesson 3 evolution of digestive systems.notebook

    5

    March 22, 2018

    Apr 511:55 AM

    Nutrition in the grasshopper

  • Nutrition lesson 3 evolution of digestive systems.notebook

    6

    March 22, 2018

    Mar 269:20 AM

  • Nutrition lesson 3 evolution of digestive systems.notebook

    7

    March 22, 2018

    Mar 293:10 PM

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