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Define Clinical Assessment For Vitamin A?
Clinical features of deficiency occur as ocular and extra ocular lesions. Ocular lesions affect the posterior segment of the eye initially with impairment of dark adaptation and night blindness (twilight blindness). Xerosis of the conjunctiva is the first sign seen on clinical examination. This leads to Bitot's spots. Keratomalacia is the last stage. Extra-ocular lesions include dry scaly skin (follicular hyperkeratosis), toad skin or phrynoderma. There is increased susceptibility to infections. The WHO classification for assessment of vitamin A status is summarized in Table.
Two atoms always represent the same element if they have. A) the same number of particles in the nucleus. B) The same number of electrons. C) The same number of shells. D) The same
PEROXISOMES AND GLYOXYSOMES Certain small ovoid unit membrane bound sac like cytoplasmic organelles, resembling lysosomes in size and appearance were isolated from var
Explain citric acid cycle In the citric acid cycle, the oxaloacetate is first condensed with acetyl CoA, and then regenerated as the cycle is comp!eted. But these react
What are synthetic auxins and what are their uses? Synthetic auxins, like indolebutyric acid (IBA) and naphthalenic acid (NAA) are substances same to IAA (a natural auxin) but
Define the Miscellaneous Applications of Sugar? Sugars are used in 1. Custards, 2. puddings, 3. pie fillings and meringues Depending on the sugar to perform vital c
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Carbon is important constituents of all organic compounds. It forms 49% of dry weight of the organisms. Earth atmosphere contains 0.03% carbon dioxide gas. The c
Q. What are the major harms caused by vitamin A deficiency? How does this vitamin act in the physiology of vision? Deficiency of vitamin A (retinol) may corneal dryness (xeroph
Unsaturated fatty acids Unsaturated fatty acids are liquid at room temperature and are characterized by having one or more double bonds. Fatty acids having two or more
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