Biology / Bio 2789 · Atom · ~20 seconds
Four-Step Nutritional Process: Ingestion to Elimination
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
Obtaining nutrition runs through four steps: ingestion, taking in food; digestion, breaking it into fragments; absorption, moving nutrients in; and elimination, removing waste.
Show
Undigested plant fiber passes through all four steps without being absorbed, since the body lacks the enzyme to break it down.
Watch for
Digestion and absorption are separate steps — a molecule can be fully digested yet fail to be absorbed.