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Explain the Characteristics of Agar- Agar?
There are many characteristics, which make agar-agar, an ideal solidifying agent. These are:
(a) It has high gel strength, so it can be used at a concentration that won't inhibit microbial growth due to low water activity.
(b) It solidifies at 40 o C and once solidified it can liquefy at 85-90 o C. So it is ideal for isolation of thermophiles.
(c) It does not have nutritional value. It is used as a nutrient source only by some marine bacteria, so that in normal use, it is not liquefied by bacterial growth. Solid media provides a hardened surface on which microorganisms can be grown in the form of discrete colonies to get pure cultures. Solid medium can be used in petri plates as agar plates.
Nervous System of Echinoderms Previous to studying the nervous system of echinoderms, you have to bear in mind the peculiar organization of these animals. Here as well, the ne
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way of remember phylum protozoa
Pneumothorax Entry of air in the pleural cavity is called pneumothorax. It may be spontaneous, result of penetrating or non-penetrating injuries. Closed Pneumothorax
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Explain Coarctation of Aorta ? Coarctation of aorta may be isolated or it may have other co-existing cardiac and vascular lesions. In critically ill neonates with coarctation,
Determine cut-off points to judge on failures - Root Canal Treatment a) Persistent of signs and/or symptom. b) If in one year there is no decrease in lesion size. c) I
Characteristics of phylum porifera
Q. What are the catalysts? Catalysts are substances that decrease the activation energy of a chemical reaction, facilitating it or making it energetically viable. The catalyst
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