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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 (xerophthalmia), cause night blindness and predisposition to skin injuries.
In the physiology of vision vitamin A participates in the formation of rhodopsin a pigment responsible for the visual perception in less illuminated places. Nutrition Vitamins - Image Diversity: vitamin A deficiency.
CHROMOLIPID Formed by lipid & pigment, eg. carotene, xanthophylls. Lycopene present in tomato & red chilli. Carrot is rich in b-carotene, converted into vitamin A.
sub classes of class pisces
Phylum Placozoa The phylum Placozoa contains a single species of a minute marine animal Trichoplax adharens composed of a dorsal and ventral epithelial layer enclosing loose m
Female Reproductive Tract The female reproductive tract involves the fallopian tubes, uterus and vagina. Look at diagram. You would notice that the ovaries lay one on each si
Lack of Osseointegration (Indicated as Mobility) Loss of osseointegration can occur during the early stages of treatment because of the inability of the woven bone to interfac
Water of Estuaries The water of estuaries is turbid because of the great number of particulates in suspension in the water. The turbidity is minimum near the mouth and increas
What is oxygen-haemoglobin dissociation curve? Explain the role of red blood cells in the transport of oxygen and carbon dioxide by blood. Briefly describe the principle, pr
What type of athlete would have a above average reaction time please explain.
Hypothetical question. A new biotech company intends to clone the gene encoding the ABA 8-hydroylase enzyme, an important protein regulating plant hormone degradation that control
Explain mixture in basic chemistry? Mixtures : Mixtures are produced by combining two or more substances. In contrast to the substances in compounds, the substances that com
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