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Explain Antibodies
Antibodies (also referred to as immunoglobulins and garnmaglobulins) are produced by plasma cells. They are Y-shaped proteins that each respond to a specific antigen. What is an antigen? The foreign matter (bacteria, virus or toxin) that enters the body and elicits a specific immune response by lymphocytes is called an antigen or immunogen. It stimulates the immune system to produce protective chemicals or special cells to destroy the antigens. These protective chemicals are called antibodies.
Why Rainfall is imprtant factor in active soil formation Of the various climatic elements that take part in active soil formation, rainfall or precipitation is the most importa
Explain in detail about the Viruses Viruses are the ultramicroscopic parasites which always require a living h ost for their multiplication. Since they are much smaller than ba
DISPOSAL OF WASTE MATERIALS : In a school or college science laboratory, chemical wastes, broken glassware, unserviceable non consumable items, obsolete instruments, used biologic
how do the currents produced by a 1.5V flashlight cell and a 12 V car battery compare if the resistance is the same?
Freezing by Contact with a Cooled Solid-Plate Freezing In this method, the product is sandwiched between metal plates and pressure is usually applied for good contact. Plate
Explain Neutrophils They form about 50-70% cells. They have fine dust like particles in the cytoplasm which stain purplish. Tissues, cells damaged by the invading microbes rele
assignment for natural rubber
To show how water rises by capillarity Colour some water in a shallow dish with ink and touch a blotter to the water surface. Observe how the water increases in the blotter.
Safety spectacles : Safety spectacles need to be used where there is the slightest risk of splashes of chemicals or fragments of dust, glass, etc. getting into the eyes.
How Complement System Helps To Handle Microbial Invasion 1) Some components of a complement system coat microorganisms. These organisms with such a coat can be easily phagocyt
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