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GK MCQs Section

Page-5 of General Science – Biology

Biological Nitrogen Fixation

The Nitrogen Fixation is the procedure by which atmospheric Nitrogen is converted into ammonia. The Nitrogen fixation is one of the important components of the Nitrogen cycle. Nitrogen...

January 26, 2016

Bacteria

The bacteria are unicellular microorganisms which were first observed and reported by Anton Von Leeuwenhoeck in 1676. All bacteria are unicellular and prokaryotic. Their size and shape varies...

January 26, 2016

Virus: Importance in Economy and Environment

Since Viruses contain the characteristics of both living and non-living organisms, they are utilized in the field of Biotechnology research.  Bacteriophage can be used in water preservation as...

January 26, 2016

Human Viral Diseases

Common animal viral diseases include African horse sickness, Foot and mouth disease of cattle, Virus pneumonia of pigs, Rabies etc. Common human viral diseases include Influenza, Measles, Herpes,...

January 26, 2016

Virus: Virus Structure, Plant Viral Diseases, Animal Viral Diseases

Virus is a Latin word, literally meaning “poison”. Tobacco Mosaic Virus was the first Virus discovered by Russian scientist Dimitri lvanovsky in 1892. A Virus is an extreme...

January 26, 2016

Taxonomy: Biological Classification of Organisms

When we classify the organisms into hierarchical series of groups on the basis of their evolutionary relationships, it is called Systematics. Classification is a subtopic of Systematics which...

January 26, 2016

Cell Biology: Cell Structure, Cell Functions, Cell Division, Cell Theory and Cell Organelles

A cell is a functional basic unit of life discovered by Robert Hooke in Cork cells and is the smallest unit of life that is classified as a...

January 26, 2016

Vitamins

Vitamin is an organic non-protein substance that is required by an organism for normal metabolic function but cannot be synthesized in sufficient quantity by that organism. In other...

January 26, 2016

Nucleic Acids

DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are nucleic acids. Nucleic acids are molecules comprised of monomers known as nucleotides. These molecules may be relatively small (as in...

January 26, 2016

Enzymes

Enzymes are proteins that act as biological catalysts. They decrease the amount of energy needed (activation energy) to start a metabolic reaction. Without enzymes, organisms are not being...

January 26, 2016

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