What are Modes of Nutrition, Biology

What is Nutrition? Explain types of nutrition?

Nutrition - Taking Nutrients from environment

Nutrients - Substances which are needed for the sources of chemical potential energy called ATP

Sources of molecules & atomy that are used for building up cells

Inorganic Nutrients - An inorganic substance where the molecules of ions are relatively small or which does not contain carbon. E.g. O2, H2O, CO2 & nitrate ions.

Organic Nutrients - In an organic substance which the molecules are usually relatively large or contain carbon. E.g. fats, carbohydrates and protein

Explain types of nutrition

Different types of organism will use different types of nutrition. There are minaly two types of nutrition used.

Autotrophic

The use of inorganic nutrients

Carried out by all algae , plants and some bacteria

Organisms that use such type of nutrition are called as AUTOTROPHS

They need an energy source that is generally the sun but can be chemical energy

Heterotrophic

The use of a mixture of organic & inorganic nutrients

Organisms that use this form o nutrition are called as HETEROTROPH

Posted Date: 6/30/2012 12:28:22 PM | Location : United States







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