Question

what is nutrition ? explain​

Answer 1

Answer:

Nutrition

Field of study

Nutrition: 1: The process of taking in food and using it for growth, metabolism, and repair. Nutritional stages are ingestion, digestion, absorption, transport, assimilation, and excretion. 2: A nourishing substance, such as nutritional solutions delivered to hospitalized patients via an IV or IG tube.

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Answer 2

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What is Nutrition?

“Nutrition is the process of taking in food and converting it into energy and other vital nutrients required for life.”

Nutrients are the substances which provide energy and biomolecules necessary for carrying out the various body functions. All living organisms need nutrients for proper functioning and growth. But they show divergence in how they fulfill this demand. Some animals feed on simple inorganic compounds to meet their nutrient requirement, while others utilise complex compounds. The mode of nutrition varies from one species to another.

Types of Nutrition

Broadly, there are two types of nutrition among living organisms, namely:

1. Autotrophic mode

2. Heterotrophic mode

Autotrophic Nutrition

In the autotrophic mode, organisms use simple inorganic matters like water and carbon dioxide in the presence of light and chlorophyll to synthesize food on their own. In other words, the process of photosynthesis is used to convert light energy into food such as glucose. Such organisms are called autotrophs. Plants, algae, and bacteria (cyanobacteria) are some examples where autotrophic nutrition is observed.

Heterotrophic Nutrition

Every organism is not capable of preparing food on its own. Such organisms depend on others for their nutrition. The organisms which cannot produce food on their own and depend on other sources/organisms are called heterotrophs. This mode of nutrition is known as heterotrophic nutrition