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Define Absorption, Storage and Elimination of vitamins?
Reading through this section you would realize that all fat-soluble vitamins undergo similar metabolic fate. They are absorbed along with fats from the small intestine. Bile is essential for the effective absorption of fats and therefore fat-soluble vitamins. The salts of bile acids (taurine and glycine derivatives of cholic acid) are the digestion promoting: constituents of bile. They are surface active agents (i.e. they lower the surface iencion and emulsify fats) and also activate the enzyme lipases. They combine will fat-soluble vitamins to form molecular components which are then absorbed. Further, all fat-soluble vitamins are stored in concentrated amounts in the liver. The main pathway of excretion is through the bile into small intestine and consequently faecal excretion. A detailed discussion on absorption, storage of each vitamin is presented later, within this section.
Define the effect of SCFA on Sodium Absorption? SCFAs (short chain fatty acids) have a stimulatory effect on sodium absorption from colonic lumen. The unionized SCFA crosses th
Do plants placed under an environment drier than the habitat where they are used to living have a reduction or an increase in the time during which their stomata remain open? I
(i) Genetic Bio- Diversity: All forms of life on earth contain genes. Genes are carrier of hereditary characteristic from one generation to another. " genetic diver
Q. Define Mushroom Poisoning? Mushroom poisoning is caused by the consumption of raw or cooked fruiting bodies (mushrooms, toadstools) of a number of species of higher fungl.
GER M LAYER THEORY - Proposed by Pander, studied chick embryo development. Coined the term ectoderm, mesoderm & endoderm.
Secondary Production - Ecosystem The net primary production is the only energy available to consumers or heterotrophs including man. Herbivores such as cow or deer gaze upon
does earthworm have rbc.
a - HELIX In this intra molecular hydrogen bonds are present The polypeptide chain is spirally coiled, generally in a clock-wise or right handed fashion. Glycine
Define Disadvantages of Direct Microscopic Count? 1. Small cells are difficult to see under the microscope and may be missed. 2. It gives total count, i.e., both live and de
Advantages of Stage two done with tissue punch - Less traumatic to surrounding tissue - Faster progress to the impression procedure - No sutures required
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