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Define the Lymphocytes
They are agranulocytes. The nucleus occupies approximately the entire cell. They vary in size from 6- 18 mm diameter; sometimes divide in small and large lymphocytes. Lymphocytes build up 30% to 40% of all leukocytes. Lymphocytes come in two categorizes: B cells (those that mature in bone marrow) and T-cells (those that mature in the thymus). Let us get to know them. B-cells, while stimulated, mature into plasma cells.
These are the cells which generate antibodies. A specific B cell is tuned to a particular germ, and when the germ is availabe in the body, the B-cell clones itself and generates millions of antibodies designed to eliminate the germ. T-cells, on the other hand, in fact bump up against cells and kill them. T-cells termed as Killer T-cells can detect cells in our body which are harboring viruses, and when it detects such type of a cell, it kills it. Two other types of T-cells, termed as Helper and Suppressor T-cells help sensitize killer T-cells and control the immune Response.
Explain Neutral fats Neutral fats are esters of fatty acids with glycerol and found abundantly in nature. These are insoluble in water but readily soluble in ether,
scientific name of hipbone
What is Soil Aeration Whatever may be the structure of aggregate, it introduces pores in the soils. These pores are filled by air and/or water and have a role in the plant grow
1.) Imagine that you are a particle inside an ice cube. You were placed into a glass of lemonade to cool it down. The lemonade has now been drunk and you have been left in the glas
types, principle and working
Nitrogen Cycle: Nitrogen is vital part of many essential organic compounds especially nucleic acids and proteins. It also forms a major part (79 per cent) of the atmosphere. I
Structure of the brain. Include different parts and their function.
Moving loads on a trolley : Loads on a trolley, are normally moved through pulling or pushing process. During the pulling process, the whole strain is to be taken by the back musc
what are the different respiratory disease in man . give their symptoms and cause
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