What do you mean by heterotrophic mode of nutrition what do you mean by heterotrophic mode of nutrition
Answers
Answer:Heterotrophic nutrition is the mode of nutrition in which organisms depend upon other organisms to survive.
All heterotrophs (except blood and gut parasites) have to convert solid food into soluble compounds capable of being absorbed (digestion).Then the soluble products of digestion for the organism are being broken down for the release of energy (respiration). All heterotrophs depend on autotrophs for their nutrition.
The four main types of heterotrophic nutrition are:
Holozoic nutrition: the word holozoic is made from two words- holo= whole and zoikos= animals and literally means animals which eat their food whole. Complex food is taken into a specialist digestive system and broken down into small pieces to be absorbed.
Saprobiontic nutrition: Organisms feed on dead organic remains of other organisms.
Parasitic nutrition: Organisms obtain food from other living organisms (the host), with the host receiving no benefit from the parasite.
Symbiotic nutrition:Two organisms live in close association to benefit each other or one of the two benefits the other whilst it itself suffers neither loss but nor does it gain.