LOW TEMPERATURE PHYSICS  INTRODUCTION: The branch of physics which deals with the production and interpretation of natural phenomena at very low temperatures i,e  between absolute zero and ice point is called low temperature physics. It is also called cryogenics. At low temperatures atoms are arranged in an orderly state. The behavior of matter at low … Read more


resumes from alltro.in

NetworkAdmin Resume (1) by Yogendra Praveen Kumar on Scribd alltro NetworkAdmin Resume 2 by Yogendra Praveen Kumar on Scribd alltro ABU CV f by Yogendra Praveen Kumar on Scribd AlltroSM f by Yogendra Praveen Kumar on Scribd Alltro Resume[2]f by Yogendra Praveen Kumar on Scribd alltro Basci Biodata 2 f by Yogendra Praveen Kumar on … Read more

what are the types of Immunity


Immunity what is Immunity? types of Immunity | what is Initiate immunity? what is Acquired immunity? differences between Acquired immunity and Initiate immunity? The resistance offered by the host to the harmful effects of pathogenic microbial infection is called immunity. Immunity is of different types:- Initiate immunity. Acquired immunity. Initiate immunity:- Innate immunity is the … Read more

What are the Types of Immune system Primary and Secondary lymphoid organs

immune system

Immune system   Cells of immune system:- One of the major ways through which the immune system operates by producing different kinds of cells. All the cells of immune system develop from the same group of stem cells of bone marrow. Stem cells: – The stem cells are the precursor cells of lymphocytes. The hematopoietic … Read more

What is immunological techniques types of antigen and antibody reactions

immunological techniques

Immunological techniques What is immunological techniques? what types of antigen- antibody reactions occurs in  immunological techniques? Immunological techniques:- Types of antigen- antibody reactions:- Precipitation:  It refers to a antigen antibody reaction between is soluble antigen and its corresponding antibody resulting in the formation of insoluble precipitate. Antibody causing precipitation is precipitinin. Mechanism: Precipitation is due … Read more

what are the Types of Hypersensitivity and vaccination and Uses

what is Hypersensitivity and vaccination

Hypersensitivity and vaccination Hypersensitivity: It is defined as the reaction of immune system leading to serve and even death indian sensitized animals when we exposed to the same antigen time. Types of hypersensitivity : Hypersensitivity is classified into two ways:-  based on time taken for the reaction  based on the mechanism of pathogen 1} Based … Read more

what are the types of Isotopes in biology and Radioactivity isotopes

what are isotopes

Isotopes in biology The Phenomenon of natural radioactivity was accidentally discovered by the french scientist henry becquerel. When he found that crystals of potassium uranyl sulphate spontaneously emitted a radiation which could blacken photographic plate. Subsequently other naturally radioactive elements like radium, thorium and radon were discovered. Isotopes: the word isotope is derived from the … Read more

What is Chromatography uses and Types of Chromatography


Partition principle: When a solute is allowed to equalibrate itself between two equals volumes of two immiscible liquids the ratio of the concentration of the solute in the two phases at equilibrium at a given temperature is called the partition coefficient. A mixture of substance with different partitions coefficients can be quantitatively separated by a … Read more

What Are The Uses Of Spectrophotometry Types Of Spectrophotometry


Spectrophotometry spectrum of light light is supposed to have a dual characteristics corpuscular and wave form. thus a beam of light has an Electromagnetic wave form a {or} photon of energy propagated at 3×108m/sec at the speed of light. The term Electromagnetic is precise description of the radiation in that radiation is made up of … Read more

what is the lock and key hypothesis of enzyme action

lock and key hypothesis

Lock and key hypothesis:- This model assumes that enzyme and substrate have mutual complementary structure in their free state and are rigid molecules. Any compound having complementary structure to the enzyme can bind to the enzyme and the reaction is possible where as any compound that takes complementary structure to the enzyme cannot bind to … Read more

what type of Factors affecting enzyme activity uses

factors that effecting enzymes activity

 Factors affecting enzyme activity:- The contact between enzyme and substrate is the most essential for enzyme activity. Concentration of enzymes:- As the concentration of enzymes increases the velocity of the reaction proportionally increases. Concentration of substrate:- In the substrate concentration gradually increases the velocity of the enzyme reactions. A rectangular hyperbola is obtained when velocity … Read more

what are the Classification Of Enzymes types and uses Enzymes

classification of enzymes

Enzymes:- Enzymes are biocatalyst is defined as a substance that increases the velocity of the chemical reaction. Engines may be classified as biocatalyst synthesized by living cells these are protein in nature colloidal thermolabial in nature and specific in their reaction. These are active only at particular temperature at low temperature they are inactive and … Read more

what is classification of Lipids uses and type of classification of Lipids

Lipids:- Lipids are heterogeneous group of biomolecules pairing in different functional groups. Due to heterogeneity in the chemical nature lipids are defined based on two common physical properties. These are hydrophobic and insoluble in h2o they required plasma lipoproteins for the transport {ketone bodies are exception because they are relatively soluble in h2 o2} Classification … Read more

what are the Amino acids,Structure of amino acids,types of Amino acids? uses of Amino acids? classification of Amino acids

what are amino acids

Amino acids Amino acids are a group of organic compounds containing two functional groups. They are amino group and carboxylic group. Amino groups is basic while carboxyl group are acidic in nature.  Structure of amino acids:- Structure of amino acids The amino acids are termed as alpha amino acids if both the carbonyl and the … Read more

what are Nucleic acid and chromosomes? what are the uses of Nucleic acid and chromosomes? types of Nucleic acid and chromosomes?

dna stucture

Nucleic acid and chromosomes:- Chemical structure based composition of nucleic acid :- Nucleic acid is a long polymeric molecule, comprising of numerous monomers called nucleotides. Nucleotides is made up of three component-sugar, nitrogen base, phosphoric acid In dna, pentose sugar is deoxyribose, while in RNA it is ribose. The four nitrogen bases found in dna … Read more