Nutrition: the Procurement and Processing of Nutrients

Subject Outline

AThe basic features of nutrition
- 1The various nutritional patterns; e.g., autotrophism and heterotrophism, phototrophism and chemotrophism
- 2Methods of ingestion or penetration [see C., below]
- 3The essential nutrients: compounds that cannot be synthesized by an organism and must be supplied in food; the nutritional needs of organisms
- 4Syntrophism: nutritional interrelationships in which the immediate or end products of metabolism of one organism may provide essential nutrients for another
BPhotosynthesis: the production of food in green plants [see also 322.A.]
CDigestion and digestive systems
- 1The contrast between autotrophs and heterotrophs
- 2The alimentary system in animals other than humans
  - aInvertebrate digestive systems: vacuolar systems, channel-network systems, saccular systems, tubular systems
  - bVertebrate digestive systems: oral cavity, teeth, and pharynx; esophagus and stomach; small intestine, pancreas, and liver; the large intestine
  - cEmbryology and evolutionary development of the vertebrate digestive system
  - dBiodynamics of the vertebrate digestive system: control of secretions and intestinal movements