Bio1152 Chapter 41 Animal Nutrition
  1. Animals are               and must ingest food to meet their energy needs.

  2. Animals can synthesize about half of the     amino acids required for protein synthesis, the rest are            amino acids that must be obtained from food.

  3. Animals with simple body plans have a                 cavity that functions in both digestion and distribution of nutrients.

  4. More complex animals possess a digestive tract (             canal) organized into specialized regions for digestion and absorption.

  5. The human digestive         consists of the             canal and various accessory         that secrete digestive juices.

  6. Food is conducted from the          down to the stomach by esophageal              .

  7. The stomach secretes          juice made up of               acid (HCl) and the enzyme         , starting the protein digestion process and converting food to acid        .

  8. The longest section of the alimentary canal is the        intestine, which is the major organ of            and             , moving the food toward the anus by              .

  9. The first portion of the small intestine is the           , where acid        mixes with digestive juices from the           ,        , and              .

  10. The        intestine, recovers        , and concentrates wastes into solid        , which pass through the         and exit via the       .

  11. Herbivores need a long time to digest the tough            in vegetation. and have         alimentary canals than carnivores.

  12. Many herbivorous animals, including            such as cattle, have               chambers where            microorganisms digest the cellulose.

    Review: Digestive System Function