Nutrition is the relationship between health, diet and disease.
Nutrition is the relationship between health, diet and disease. We intake food for the growth and development and receive energy in the form of nutritive food. This intake of nutrients that helps us to sustain and grow is called nutrition. This is the nutrition definition Biology can relate with. Broadly explained, it involves the Science where the study of nutrients and other food substances are studied to gain knowledge about the maintenance, growth, health, reproduction and disease of an organism. It also includes all processes taking place in the body like absorption, assimilation, food intake, catabolism, biosynthesis and excretion. Healthy nutrition is important for the body with the right and balanced nutrients present in the diet we consume. It will prevent diseases from occurring and maintain the right kind of lifestyle. Unhealthy nutrition is harmful physically as well as mentally, therefore, one should always seek the correct food in the right proportions and a variety of food that helps us heal all the time. A nutritionist gives a healthy nutrition plan and helps you maintain the right weight and calories goal. Knowing all of these, by now, you must have been aware of what is nutrition all about. Not only human beings, but all living organisms including plants and microorganisms require nutrition to survive healthily. Therefore, nutrition in living organisms is equally important for all to obtain energy and derive nutrients for growth and development. There are various types of nutrition that an organism can engage in and we will know each of them further.
The different modes of nutrition can answer the following question: How Do Organisms Obtain Their Nutrition ? The below diagrammatic representation shows the different modes of nutrition in a precise manner which we will also describe ahead. Depending upon the various modes of nutrition in living organisms, nutrition can be divided into the following categories:
Nutrition in living organisms varies according to their way of food consumption. Autotrophic nutrition refers to that kind of nutrition when organisms are involved in making their own food. They can be classified into:
Certain Characteristics of These Kinds of Organisms Include:
Heterotrophic nutrition is one of the types of nutrition when organisms are unable to synthesise their own food and depend upon other organisms for deriving the nutrients. Certain characteristics of these organisms include-
Heterotrophs can be further classified into the following:
Nutrition is important for a living organism because it provides nutrients that help break down food to provide energy for organisms. This energy is further utilized in the growth and development and carrying out various life processes like metabolism, catabolism, assimilation, reproduction, etc. Nutrition in humans will help in living a healthy lifestyle free of diseases and maintain the correct body mass index (BMI). A nutritionist will always suggest fitness enthusiasts with a list of diet charts that consists of different varieties of food to cover up all the nutrients for the body through proper nutrition.
Living organisms like plants, animals, human beings, and microorganisms need nutrients for the following reasons:
All the components of food substances necessary for the growth and development of all living organisms in the form of energy/sugar/carbohydrates/fats/proteins are called nutrients.