Science

  QUICK REVISION SERIES   ALLOTROPES OF CARBON: Concept of Allotropes:       An element, in different forms, having different physical properties but similar chemical properties is known as allotropes of that element. Carbon has three well known allotropes which are graphite, diamond and buck minster fullerene. These are formed by carbon atoms. Allotrope Type Properties Graphite Each … Read more Quick Revision-Allotropes of carbon

Most of the nuclear reactors work on the principle of nuclear fission. The energy released in the reaction is used to turn water into steam. The steam is used to run the turbine. Diff types of nuclear reactor: Type of reactor Characteristics Light water reactor 1.    Boiling water reactor ·         Reactor core heats water which … Read more DMPQ: Discuss the types of nuclear reactors.

India’s latest communication satellite GSAT-30 was successfully launched from the Spaceport in French Guiana. With a lift-off mass of 3357 kg, GSAT-30 will provide continuity to operational services on some of the in-orbit satellites. GSAT-30 derives its heritage from ISRO’s earlier INSAT/GSAT satellite series and will replace INSAT-4A in orbit. GSAT-30 has a unique configuration … Read more DMPQ- Comment on the utility of recently launched satellite GSAT-30.

A quantum computer employs the principles of quantum mechanics to store information in ‘qubits’ instead of the typical ‘bits’ of 1 and 0.  Just as a bit is the basic unit of information in a classical computer, a qubit is the basic unit of information in a quantum computer.  It takes advantage of the strange … Read more DMPQ-What is quantum computing and how they are different from normal computers?

.   CRISPR stands for Clustered regularly interspaced short palindromic repeats it is in the series of molecular scissors which is used for deletion, insertion and replacement of genome to achieve the desired result. It is latest technology of gene editing. Cas-9 is an enzyme. It use a synthetic guide RNA to introduce a double strand … Read more DMPQ: What is CRISPR-Cas9 and explain the process involved in using it. (Science)

Bio-Plastics refers to Bio-degradable Materials manufactured from Renewable Sources that can be used in Packaging of Goods similarly as Plastic. Earth consumes around 200 Million Tonnes of Plastic every Year resulting in Pollution and Climate Change.  They have an advantage over conventional plastic as they are biodegradable, less carbon foot print, no additives, maintain the … Read more DMPQ: What are bioplastics? Discuss the issues with the use of bioplastics. (Science)

The lymphatic system has three primary functions: Fluid balance The lymphatic system helps maintain fluid balance. It returns excess fluid and proteins from the tissues that cannot be returned through the blood vessels.  The fluid is found in tissue spaces and cavities, in the tiny spaces surrounding cells, known as the interstitial spaces. These are … Read more DMPQ- What are the Functions of lymph system?

There are 23 pair of chromosomes in human body. When there is change in the number of the chromosomes or alteration in the structure of the chromosomes, It leads to chromosomal disorder. These orders are called syndromes. There are  two types of chromosomal disorders one is due to change in numbers. These are of two … Read more What are chromosomal disorders? Explain its types? Name and   explain any two types of   genetic disorders?

The environment-friendly bio-toilets for passenger coaches were developed jointly by Indian Railways and Defence Research and Development Organisation (DRDO).In the bio-toilet fitted coaches, human waste is collected in bio digester tanks below the toilets and is decomposed by a consortium of anaerobic bacteria.By the process of hydrolysis, acetogenesis, acidogenesis and methanogenesis, the anaerobic bacteria converts … Read more DMPQ- Short note on Bio toilets.

It refers to the elimination/removal of metabolic wastes from the body. There are four major organs of excretions : kidney, lungs, skin and the liver. Out of these four organs kidneys are the primary excretory organs that eliminate metabolic waste products in the form of urine. The major functions of urine are: Excretions of wastes … Read more DMPQ: What is excretion? Outline the functions of kidney. ( Science)