Polar Molecules In Living Organisms

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In an aqueous environment for living organisms, water is used in different ways such as solvents, temperature buffers, metabolite and the living environment. In the solvents, the oxygen atoms of water molecules attracts the cations and by extension the water molecules around it. The more water molecules being attracted the more Hydrogen ions are being formed between them. As a result of this, there is a cluster of water molecules around the ions, therefore the ions are hydrated. Anions also attract water molecules; in this case the positive end of the molecule is where the Hydrogen atoms are being attracted to and not the negative end of the molecule. This is called Polar Molecules. Polar Molecules dissolve in water; these Polar Molecules are sugars, amino acids, small nucleic acids and proteins. Polar Molecules have both positive and negative ends and as a result of this …show more content…
Diffusion is the movement of atoms or molecules from an area of high concentration to an area of low concentration down a concentration gradient. Osmosis is the spontaneous movement of water particles from a region of high concentration to a region of low concentration through a selectively permeable membrane.

What is osmotic pressure? Osmotic Pressure is the minimum amount of pressure needed to be applied to a solution to prevent the inward flow of water across a selectively permeable membrane.

Identify and discuss various buffer systems found in the body. The buffer system in the body is the Bicarbonate Buffer System. The bicarbonate buffer system is an acid/base mechanism which involves the balance of Carbonic Acid (H_2 〖CO〗_3), Bicarbonate Ion (〖HCO〗_3^-), and Carbon Dioxide (〖CO〗_2) so that the pH in the blood and duodenum can be maintained, among all other tissues and to support metabolic functions. A catalyzed reaction also takes place forming this equation:
〖CO〗_2+H_2 O⇋H_2 〖CO〗_3⇋〖HCO〗_3^-+H^+

What is hypertonic solution and a hypotonic

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