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Explain Particle Movement ?
Particle Movement : Particles are moved down a concentration gradient by the process of diffusion. Osmosis is simply the diffusion of water across a semipermeable membrane. We show four examples of osmosis - two with a red blood cell, and two with a plant cell. Diffusion and osmosis are vital for exchanging fluids, gases, and other substances in cells.
Q. How can an organism that once underwent contact with an antigen be immunized against future infections by the same agent? This phenomenon is called as immune memory when an
EARTHQUAKES An earthquake with its terrible aftereffects is one of the most frightening and destructive phenomena of nature. It can be defined as a sudden movement of
Explain the Sources of Microorganisms? Microorganisms are virtually present everywhere in nature including air, water and soil. The microbial flora is also associated with the
Infective Endocarditis It is a term used to include subacute bacterial endocarditis as well as infection caused by viruses and fungi. The causative organisms responsibl
Explain the Hydrophobic Grid Membrane Filter (HGMF)? It is also used to enumerate microorganisms from a variety of food samples. By using this method, organisms as few as 10 ce
What is a membrane? Membrane is any delicate sheet that divides one region from another blocking or permitting (selectively or completely) the passage of substances. The skin,
Absorption The monosaccharides, amino acids and other products of digestion must be passed on to other tissues to be useful for the organism. The process by which the digested
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Define Distribution of Food Products - Public Nutrition? We learnt earlier that we have buffer stocks of food grains in our country. These stocks do help to combat acute transi
Q. How are the female gametes of gymnosperms formed? What is the relationship between this process and the concept of alternation of generations? In the female strobiles (cones
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