the seven crystal system

The Seven Crystal System - Crystals along with suitable examples are listed in the table. System Axial distances Axial angles Examples Cubic a = b = c α = β = γ = 90° NaCl,KCl, Diamond, Cu, Ag Tetragonal a = b ≠ c α = &..

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Another type of microphone, widely used in public-address systems, depends for its action on the piezoelectric effect possessed by certain crystals, for example Rochelle salt. The term piezoelectric effect refers to the fact that when pressure is applied on the crystal..

Calculation of Number of Particles per Unit Cell of a Cubic Crystal System. Keeping the following points in mind we can calculate the number of atoms in a unit cell. An atom at the corner is shared by eight unit cells. Hence an atom at the corner contributes 1/8 to the uni..

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pH plays a very significant role in biochemical reactions. For example, the blood in our bodies is maintained at a pH value of 7.36 - 7.42 due to bicarbonate - carbonic acid mixture. A mere change of 0.2 pH units can cause death. Certain enzymes in the body get activated only a..

Gout - Uric acid accumulates in the blood and deposits as crystals in joints, kidneys and cartilages. This is a hereditary diseas..

Humoral Immune System - The plasma b - cells produce a lot of anti-bodies, which circulate in the lymph. Each person can make 10 7 to 10 8 different kinds of antibody molecules so that there is an antibody for any antigen. The plasma membrane of each B cell should be sensitised ..

The plasma b - cells produce a lot of anti-bodies, which circulate in the lymph. Each person can make 10 7 to 10 8 different kinds of antibody molecules so that there is an antibody for any antigen. The plasma membrane of each B cell should be sensitised by contact with a specific antigen..

Cylic reaction transport occurs only occasionally when synthesis of carbohydrate is curtailed due to limited supply of CO 2 and NADPH 2 starts accumulating. At this time, there would be no need for additional NADPH 2 . Moreover, the cyclic electron transport serves the purpose of more production of..