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Q. What is membrane?
Membrane is any delicate sheet that separates one region from another blocking or permitting completely or selectively the passage of substances. The skin, for instance, can be considered a membrane that separates the external from the internal of the body; cellophane, used in chemical laboratories to separate solutions, acts as a membrane too.
Drawbacks of Lamellar model This model does not explain the elasticity of PM. Although this model says that PM is elastic but it also states that head of lipid molecules is
Define Promoting food security to control under nutrition? Public distribution of food grains through a network of ration shops, particularly to reach the population below the
Explain in brief about the term - Calcium Calcium is absorbed as Ca 2+ ion and is a constituent of cell wall, an activator of different plant enzymes and is essential for t
Q. Show effects of Hypertension? Hypertension can be damaging due to two effects: 1. Increased work load on the heart, and 2. Effect of hypertension on arteries The in
One can verify the age of an oak tree by counting the annual rings of formed by the. a. primary xylem, apical meristem b. secondary phloem, vascular cambium c. dermal
Define Essentiality of Nitrogen for Growth of Micro-Organism? Nitrogen is an essential atom in certain cellular macromolecules, e.g. amino acids, purines, pyrimidines, enzymes,
Q. Symptoms of ulcerative colitis? As discussed in the case study above, the common symptoms are: 1. Mild abdominaI discomfort, an urgent need to defecate several times a da
Explain about the Neuro Trauma? Neuro or head trauma includes brain injury, skull fractures, extraparenchymal or internal brain haemorrhage, Brain injury can be divided into th
Find the initial osmotic pressure at room temperature for a cell if the only ions present are KCl and NaCl on either side of the membrane. Assume the concentrations for K+ and Na+
Define Metabolic utilization of carbohydrates? Following absorption, the monosaccharides enter the portal circulation and are carried to the liver. Both galactose and fructose
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