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Different types of nutrition (Heterotrophic Nutrition (Holozoic Nutrition,…
Different types of nutrition
Autotophic Nutrition
Photosynthesis
Green plants and certain bacteria can manufacture their own food from inorganic substances(CO2 and H2O) using energy from sunlight
Chemosynthesis
Chemosynthesis is the process by which food (glucose) is made by bacteria using chemicals as the energy source, rather than sunlight. Chemosynthesis occurs around hydrothermal vents and methane seeps in the deep sea where sunlight is absent.
Heterotrophic Nutrition
Holozoic Nutrition
In this mode, the organisms engulf the food into the body, digest it and absorb the soluble products of digestion.
Example
Humans
Carnivorous
Eats only meat
Hervivorous
Eats only plants
Omnivorous
Eats both meat and plants
Saprotrophic Nutrition
In this mode, the organisms secrete digestive enzymes on to dead organic material and absorb the products of digestion
Example
Certain bacteria and Fungi
Parasitic Nutrition
In this mode, the food is derived from other living organisms by living on or inside their body
Example
Certain bacteria, roundworm, tapeworm, cuscuta, etc
Certain types of organisms can live and coexist with the host without damaging it but organisms like tapeworms that live in the intestine of for example humans can damage it