Mention one application for each of the following : (a) Passive immunization (b) Antihistamine (c ) Colostrum (d) Cytokinin - barrier

Mention one application for each of the following : (a) Passive immuni

1.	Mention one application for each of the following : (a) Passive immunization (b) Antihistamine (c ) Colostrum (d) Cytokinin - barrier
Answer» (a) Passive immunization : Even in ceses of snakebites , the injection which is given to the patients contain preformed antibodies against the snake venom . We need to directly inject the preformed antibodies or antitoxin (a preparation containing antibodies to the toxin). (b) Antithistamine : Pharmaceutical drug that opposes the activity of histamine reception in the body. (c ) Colostrum : The yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. (d) Cytokinin - barrier : Virus infected cells secrete proteins called interferons which protect non - infected cells from further viral indection.

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(i) Arrange the following compounds in an increasing order of basic strength : `C_(6)H_(5)NH_(2), C_(6)H_(5)N(CN_(3))_(2), (C_(2)H_(5))_(2)NH and CH_(3)NH_(2)` (ii) Arrange the following compounds in a decreasing order of `pK_(b)` values: `C_(2)H_(5)NH_(2), C_(6)H_(5)NHCH_(3), (C_(2)H_(5))_(2) NH and C_(6)H_(5)NH_(2)`
Rerrange the following in an increasing order of their basic strengths: `C_(6)H_(5)NH_(2),C_(6)H_(5)N(CH_(3))_(2),(C_(6)H_(5))_(2)` NH and `CH_(3)NH_(2)`.
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Mention one application for each of the following : (a) Passive immunization (b) Antihistamine (c ) Colostrum (d) Cytokinin - barrier

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