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Define Interferons - Humoral Mechanisms
Interferons are soluble proteins secreted naturally when cells become infected by foreign bodies. Infected lymphocytes release interferons alpha that is one out of the 14 sub kinds known. Other cell types when infected by some viruses release interferon beta. These interferons are released into extra cellular fluids, where they diffuse to form a protective ring of un-infectable cells, thereby limiting the spread of infection. Besides this, they inhibit protein synthesis by interfering with the process of translation and promote degradation of mRNA. Since viruses depend partly on nucleic acids of the host for protein synthesis, interferons have a marked inhibitory effect on the replication of viruses.
Hirschsprungs Disease (Congenital Megacolon): This is also known as congenital megacolon. There is absence of ganglion cells, submucus plexus and intramural plexus (parasym
a) Where casparian strips situated in a plant body are and what are they made up of? Mention its function. b) What is respiration quotient (RQ)? Under what conditions will th
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Explain briefly about Foams Consider the following example. Take some liquid in a glass and agitate or shake it vigorously. What do you observe at the top of the liquid. Yes,
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List and briefly describe the mechanisms that prevent acid-base imbalances from appearing in the body. In addition, indicate where each mechanism functions most significantly.
Calvin cycle electron transport chain glycolysis Kreb's cycle photosystem II.
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