Modes of Nutrition

• Nutrition is the process by which organisms obtain food and energy for growth, repair and, maintenance of the body.
• Autotrophs: organisms capable of making their own food

  e.g. plants, some bacteria, fungi
• Heterotrophs: organisms that obtain its energy by consuming other organisms

  1. herbivores (cow)
  2. carnivores (wolf)
  3. omnivores (humans)
• Processes involved in human nutrition

  • Ingestion/Feeding
  • Digestion
  • Absorption
  • Assimilation
  • Egestion/Defection