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Explain Gelatin - Tests for Presence of Exoenzymatic Activity?
Gelatin is an incomplete protein as it lacks amino acid tryptophan. It is a major component of connective tissue and tendons in humans and other animals. Many microorganisms produce an enzyme gelatinase, which result in its hydrolysis. Gelatin deep tubes (Nutrient broth supplemented with 12% gelatin) are used to demonstrate the hydrolytic activity of gelatinase. Gelatin is solid at temperature less than 25°C and liquid at temperature above 25°C. Gelatinase degrades gelatin to produce amino acids and liquefies gelatin. Once this degradation occurs, gel characteristic is not restored even at 4°C. Following inoculation and incubation for 48 hours, if the culture remains liquid, it indicates fast gelatin hydrolysis. If it gets solidified, further incubate for 5 days. If it remain liquefy on refrigeration for 30 minutes, it indicates slow gelatin hydrolysis.
Class of Crustacea - Ostracoda Generally called mussel or seed-shrimps, Ostracoda include both fresh water and marine forms. The small crustaceans, computing a few mm have the
CIRCUL A T O R Y SYSTEM IN COCKROACH Type is open or lacunar. i.e. b.v. absent. Organs are dipped in haemolymph. 1 . HAEMOLYMPH - Blood and lymph are mixed.
Q. What similarities do reptiles and birds share regarding external coverage, reproduction and excretion? Regarding external coverage, birds are similar to reptiles as they pre
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Define Applications of Isolated Soybean Proteins in Meat products? The major application of ISP in connection with meat and related products is based on the use of texturized I
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What mode of nutrition did lizard exihbite
Make a detailed study on phylum protozoa taking an example with clear labeled diagram
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