Define the terms ‘nutrition’ and ‘nutrients’. List two differences between ‘Holozoic nutrition’ and ‘Saprophytic nutrition’. Give two examples of each.
Nutrition: It refers to the process of acquiring source of energy from outside to inside our body.
Nutrients: They are different sources of energy acquired by living organisms by nutrition.
| Holozoic Nutrition | Saprophytic Nutrition |
|---|---|
| In it, living organisms take up complex food, that is broken down into simpler forms inside the body of an organism. | In it, an organisms obtains its nutrients by digesting dead and decaying organic matter. |
| A specialised digestive system is involved. Example: human beings and cow. | Organisms lack specialised digestive system. They produce enzymes, that digest the organic matter outside the cell. Digested nutrients are absorbed into cell. Example : Certain bacteria and fungi etc. |