October, 2020

• 30 October

  Bacterial Structure

  

  Bacteria (singular: bacterium) are classified as prokaryotes. They are single-celled life/body with a simple core-less internal structure and contain DNA that swims freely in a twisted, thread-like matter called a nucleoid, or in circular parts called plasmids. Bacteria are single-celled microscopic life/organisms that grow in different environments, and these organisms can live in …

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• 26 October

  Protein and Peptides: An Inevitable Source of Nutrition (Part 1)

  

  Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells, and organisms, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which …

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• 26 October

  Lipids and Fatty Acids: An Inescapable Organic Compounds

  

  In biology and biochemistry, a lipid is a macro-biomolecule that is soluble in nonpolar solvents. Non-polar solvents are typically hydrocarbons used to dissolve other naturally occurring hydrocarbon lipid molecules that do not (or do not easily) dissolve in water, including fatty acids, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids. …

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• 26 October

  Tricks for GRE Preparation

  

  Preparation tricks for GRE are described here: GRE Quant Prep Advice Start with Math concepts books like Manhattan/Kaplan or Magoosh books. These concepts books will give you good foundations of math topics, formula, and how concepts are tested.   Then move to ETS Official GRE books to get the feeling of …

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• 26 October

  Preservation of Cultures

  

  The primary aim of culture preservation is to maintain the organism alive, uncontaminated, and without variation or mutation, that is, to preserve the culture in a condition that is as close as possible to the original isolate. Once a microorganism has been isolated and grown in pure culture, it becomes …

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• 26 October

  Ecosystem: Balance & Imbalance

  

  The term ‘ecosystem’ was first used by A. G. Tansley in 1935. Tansley defined an ecosystem as a particular category of physical systems, consisting of organisms and inorganic components in a relatively stable equilibrium, open, and of various sizes and kinds. An ecosystem is a structural and functional unit of …

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• 26 October

  Internal Structure of Wood

  

  Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic material – a natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression. In this article, Internal structure of Wood …

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• 25 October

  How to Select Universities to Apply : Higher Studies

  

  Selecting University is a crucial step in the journey of Higher Studies. This post is mainly for those who will prefer to apply centrally for admission to US universities. But others can find the ways of selecting Universities  useful too.   The post is from a graduate student at the …

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• 25 October

  Energy Environment: Global Radiation Balance & Energy Budget

  

  Global Radiation Balance There are various factors that influence the amount of radiation coming from the sun to the earth’s surface. Some of the radiation is reflected upward, some is scattered both upward and downward directions. Besides, some of the radiation is absorbed by the clouds and atmosphere. The rest …

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• 25 October

  Arsenic: Exposure, Effect & Contamination

  

  Arsenic is a naturally found chemical element whose atomic number is 33 with a symbol as ‘As’. It occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is one of the fundamental chemical element. It is a metalloid. Symbol: As …

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