Biology_Today_-_October_2016

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Het Shah Rank Team^ Applauds It gives us immense pleasure to felicitate the achievement of our reader Het Shah (MTG Subscription ...

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of JEE Mains. AIIMS paper was a bit tricky considering its assertion-reason questions. The biology section was very flat and inc ...

BIOMOLECULES Biomolecules are chemicals or molecules present in the living organisms. The collection or sum total of different t ...

CARBOHYDRATES Carbohydrates are the most abundant organic molecules in nature. They are produced during photosynthesis of autotr ...

Oligosaccharides Oligosaccharides are small carbohydrates which are formed by condensation of 2-9 monosaccharides. Depending upo ...

Homopolysaccharides or homoglycans are those complex carbohydrates which are formed by polymerisation of only one type of monosa ...

Types of Fatty Acids Possess one or more double bonds in their carbon chains. The general formula is CnH2n–2xO 2. Unsaturated fa ...

Derived lipids These are the derivatives obtained on the hydrolysis of group 1 and group 2 lipids, e.g., steroids, terpenes and ...

AMINO ACIDS Amino acids are organic acids (with carboxylic group –COOH) having amino group (–NH 2 ) generally attached to α-carb ...

(v) β-alanine, a derivative of asparate, takes part in the formation of coenzyme A and pantothenic acid (a vitamin). (vi) Histam ...

Functions of Proteins (i) Protective structure Keratin forms protective structures of animals like nails, hoofs, hair, feathers. ...

Bond Formation in Nucleotides The pentoses are bound to nitrogenous bases by β - N - glycosidic bonds. The N-9 of a purine ring ...

It is summarised as follows: The DNA is a right handed double helix comparable to a twisted ladder. It consists of two polydeox ...

New MCQs Which of the following statements about oligosaccharides is correct? (a) Raffinose is an example of tetrasaccharides. ...

Aflatoxin is produced by (a) Ephedra (b) Aspergillus flavus (c) Solanum tuberosum (d) Plantago ovata. Excess accumulation of ga ...

Amino acid alanine is (a) monoamino monocarboxylic amino acid (b) sulphur containing amino acid (c) monoamino dicarboxylic amin ...

 
   
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