Vitamin A: Structure, Properties, Functions, and Deficiency

Vitamin A structure and functions

Vitamins are the organic compounds occurring in small quantities in different natural foods and necessary for growth and maintenance of good health in human beings and in experimental animals. Basically, vitamins can be divided into two types based on solubility. Vitamins mean Vital Amines They are  Fat-soluble (Vitamin A, D, E, and K)Water-soluble (B-Complex vitamin and Vitamin C) In this …

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What is Gluconeogenesis? What are the Steps and Importance of Metabolism?

Gluconeogenesis or neoglucogenesis

Gluconeogenesis is the process of synthesizing glucose from non-carbohydrate sources. Where does gluconeogenesis occur? The process takes place mainly in the liver and limited extent in the kidney and small intestine under some conditions. It is also called “Endogenous glucose Production” (EGP). It is one of the metabolic pathways. The production of glucose from other carbon skeletons is necessary since …

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What Are The Basics of pH? Do You Know The Importance?

what is ph and its importance

What are the Basics of pH? The nature of the solution (acidic, alkaline (or) neutral) can be represented in terms of either hydrogen ion concentration (or) hydroxyl ion concentration. In 1909, Sorenson used a logarithmic scale for expressing the H+ concentration. This scale was called “pH”, Where “P” stands for ‘Power’ and ‘H’ for hydrogen ion concentration. Sorenson defines the pH …

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Physio Chemical Properties of Amino acids? (Guide)

What are the Physio Chemical Properties of Amino acids?

Amino acids are basically building blocks of proteins. This chapter includes the Physio chemical properties of Amino acids. Before going to the physical and chemical properties of amino acids, we should brush back the amino acids basic points. What is an Amino acid? Amino acids are biological organic molecules containing both an amino group(s) and a carboxyl group (s). Physiochemical …

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What are Polysaccharides and How it was Classified?

polysaccharides and its types

Carbohydrates composed of ten or more monosaccharide units are classifieds as polysaccharides, and their molecules are colloidal in size. They may be considered as condensation polymers in which the monosaccharides (or their derivatives such as the amino sugars and uronic acids) are joined by glycosidic linkages. By far the most important naturally occurring polysaccharides are Starch and Cellulose. Another term for the …

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VITAMINS : The Micro-Nutrients in Our Body

VITAMINS : The Micro-nutrients in Our Body

The essential Macronutrients are water, proteins, carbohydrates, fats, vitamins, and minerals. In developed countries, vitamin deficiencies result mainly from poverty, food fads, drugs, or alcoholism. Vitamin toxicity (hypervitaminosis) usually results from taking mega doses of Vitamin A, D, B6, or niacin. In general, excess amounts of water-soluble vitamins are excreted via the Kidneys. Vitamins may be fat-soluble (vitamins A, D, …

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Nobel Prize in Physiology and Medicine From 2001 to 2020 (Updated)

nobel prizes in medicine

What is a Nobel Prize and Who is Alfred Nobel? Since 1901, the Nobel Prize has been honoring men and women from all corners of the globe for outstanding achievements in physics, chemistry, physiology or medicine, literature, and for work in peace. Here is the list of Nobel Prize in Physiology or Medicine below from 2001 to 2019. The foundations …

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What is Pituitary Gland and its Secretions?

Pituitary Gland its secretions

The human Pituitary gland is reddish–Grey, an oval structure about 10mm in diameter in the brain just behind the optic chiasma as an extension of the field of the hypothalamus. The average weight of the gland in females is 0.5–0.6gm and in males is 0.6 to 0.7 gm.  The Pituitary gland location below the Hypothalamus of the brain. What are the …

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