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Explain the Bunsen Burner?
It is a type of gas burner that gives very hot flame by allowing air to enter at the base and mix with the gas. It is used -
(a) For sterilizing inoculating loop/needle/forcep etc.
(b) For sterilizing mouth of the flask, test tubes and other glass apparatus.
(c) At the time of culturing or transferring the microorganisms to avoid contamination.
Here the sterilization is done with dry heat. If bunsen burner is not available, spirit lamp can be used.
Group specificity Some enzymes prefer a specific functional group to be present\%on the substrate molecules. Example:- alcohol dehydrogenase acts on alcohols having -OH gr
Pseudocoelom - Metazoa The platyhelminths which do not have a body cavity surrounding the gut, have a solid type of body constitution. The mesoderm completely fills the space
what is endosperm haustorium
Invertebrates - Osmotic and Ionic Regulation Regulation of water and ions in invertebrates is done by neuroendocrine mechanism. It operates at the level of Malpighian tubules
State about Electric Field Lines Electric Field Lines (lines of force) - show direction of force on a positive test charge from a distribution of charges. The electric field
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OTHE R GLANDS - (i) Mammary glands - Study of mammary gland is mastology. Modified sweat gland. 4-5 pairs in rabbit. 1 pair in human. In opposum 25 pairs (max.).
In hospitals where many tuberculosis patients are treated the population of the tuberculosis mycobacteria may be constituted of multiresistant (to antibiotics) strains. How does th
What are the differences between astral and anastral mitosis? Astral mitosis is that in which there is structure of the aster, a structure made by the centrioles. Anastral mito
The boll weevil, an insect native to Mexico and Central America, is another pest of commercial cotton. When chemical insecticides were first discovered, they proved highly effectiv
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