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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.
E. coli DNA has a MW of about 2.7 x 10^9 Daltons. How many meters long is this molecule and what does this tell you about the state of the intracellular DNA? ( The lenght of a sing
Food applications of CMC In common with other linear water-soluble polymers, cellulose gum solutions are pseudoplastic that is the viscosity decreases as the rate of shear inc
Q. What is the salivary digestive enzyme? Which type of food does it digest and into which smaller molecules does it transform the food? The salivary hydrolase is known as sali
Air pollution can be controlled by two fundamental ways. Preventive technique: Important measure to control air pollution Suitable fuel having low sulphur content shoul
In these disinfectants, iodine is incorporated along with a detergent. They are not as effective as hypochlorites against bacterial spore but also get inactivated in the pres
Explain the Conjunctival impression Cytology (CIC)? Conjunctival impression cytology (CIC) is a simple, rapid and inexpensive method which is suitable for a field survey. By to
Q. Do echinoderms have circulatory and respiratory systems? In echinoderms there are not well- defined respiratory with the exception of the holothurian group and circulatory s
Explain Class Bivalvia in animal kingdom? This name of this Class reflects the group's most distinguishing feature. Clams, oysters, scallops and mussels all have two shells tha
Reaction specificity Some enzymes catalyze only one reaction acting on a specific substrate. Example: urease and catalase acts only on urea and hydrogen peroxide,
Q. What do you mean by Herbaria and Museums? A herbarium is a collection of pressed and dried plants arranged according to some valid system of classification and available for
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