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Q. Explain about Gastric ulcers?
Gastric ulcers occur in the lesser curvature of the antrum of stomach. A gastric ulcer appears to be caused by reflux of bile and factors that disrupt the mucosa barrier permitting the hydrogen ions to diffuse into the mucosal tissue where they cause damage. The damage causes cell destruction and subsequent ulceration (due to defect in pyloric sphincter). NSAID dramatically increase the risk of ulcers and is related to the systemic inhibition of prostaglandin production. Thus results in impaired defense against acidity by the gastric mucosa. Another pathogenetic factor is H. Pylori infection and the resulting impaired mucosal defence.
Digestion of fats A. Production of bile salts in the liver and the secretion of those bile salts into the small intestine. B. Production of lipase in the pancreas and
Explain Risk evaluation Risk evaluation: The risk evaluation involves: A) identification of a food safety problem B) Establishment of a risk profile C) Ranking of
Oxides of sulphur: It includes SO 2 , SO 3 . It is a colorless gas having sharp, pungent and suffocating odour. It is soluble in water and forms H 2 SO 4 . Sourc
Define Calcium - The Macronutrient? Calcium is an important mineral found mainly in bone and teeth. It is widely distributed in food substances such as milk, cheese, egg yolk,
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Q. What is the life cycle of the gymnosperms? As all plants they present a diplobiontic life cycle that is alternation of generations with haploid and diploid stages and the la
A simple method used to identify areas of high conservation priority is the selection of countries according to highest species richness. Among the top 12 countries identified this
C4 plants are more efficient in photosynthesis than C3 plants due to: 1. Higher leaf area 2. Presence of larger number of chloroplasts in the leaf cells 3. Presence of thi
WHAT IS A CELL
write the charecteristics of lake ecosystem
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