Categorie: Tutti - digestion - nutrients

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Digestion 3070

The importance of food in biological organisms lies in its provision of essential nutrients, which serve as both fuel and building blocks for tissue growth and cellular turnover. Various feeding mechanisms exist across different species, including endocytosis, suspension/

Digestion 3070

Digestion

Why do we need food?

Food = Nutritional Molecules


  1. Fuel
  2. Building blocks (synthesis during tissue growth/cell turnover)

Feeding Mechanisms

DEPOSIT FEEDERS (detritivory)
CARNIVORES
HERBIVORES
SUSPENSION/ FILTER FEEDING
sessile aquatic animals, sponges, hydra
ENDOCYTOSIS
pgagocytosis or phenocytosis
amoeba
SURFACE ABSORPTION
taenia
Animals can either wait or forage for food
Problems: Undernourishment vs Overnourishment