Category Archives for "Human Physiology"

ADH Vs Aldosterone: Definition, Functions and Differences

The endocrine system consists of a number of ductless glands which produces chemical substances, known as a hormone. Hormones work individually in very low concentration and take part in different chemical reactions or can act as a catalyst. They are generally protein in nature and never stored in any other place for future use except […]

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Enzyme : Properties, Classification and Functions

The enzyme is a substance that performs as a biological organic catalyst to enhance the chemical reactions. Enzymes are produced by cells but the presence of cell is not essential for their activity. All enzymes are protein in nature. Many enzymes are simple proteins and do not require any additional factor for their activity. Some enzymes […]

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Protein: Types and Its Functions

Protein is a polymer which is formed by one or more long chains molecular units called amino acids. It performs a variety of functions in essentially all biological processes.  Important functions are mechanical support, DNA replication, metabolic reactions, growth regulations, immune protection, transportation of molecules, storage of molecules, etc.It is an organic material of protoplasm […]

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Vitamins : Classification, Functions and Deficiency Symptoms

The word ‘vitamin’ (Latin, vita, life+ amine) is derived from the original word “vitamine”, coined by Casimir Funk in 1912. Vitamin is an organic compound which is found in the food in variable and minute quantity and must be supplied to the animal organism from the external sources. It is a vital nutrient for an […]

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Nutrition : Nutrients, Types of Nutrition and Importance

Every living organism requires a supply of food for the maintenance of life and the processes connected with life including growth, movement, reproduction etc. A living organism synthesizes or collects its necessary food from the surrounding environment.Mineral, vitamins, and water also required for various life processes. All these essential substances are collectively called nutrients. Nutrition […]

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