Skip to main content
Medicine LibreTexts

11: The Gut and Digestion

  • Page ID
    2246
  • Learning Objectives

    After completing this section, you should know:

    • what is meant by the terms: ingestion, digestion, absorption, assimilation, egestion, peristalsis and chyme
    • the characteristics, advantages and disadvantages of a herbivorous, carnivorous and omnivorous diet
    • the 4 main functions of the gut
    • the parts of the gut in the order in which the food passes down it

    Plant cells are made of organic molecules using energy from the sun. This process is called photosynthesis. Animals rely on these ready-made organic molecules to supply them with their food. Some animals (herbivores) eat plants; some (carnivores) eat the herbivores.

    Thumbnail: Illustration of human gastrointestinal tract. (Public Domain; Indolences).

    Contributors and Attributions

    • Ruth Lawson (Otago Polytechnic; Dunedin, New Zealand)