OSMOTIC PRESSURES
\ɒzmˈɒtɪk pɹˈɛʃəz], \ɒzmˈɒtɪk pɹˈɛʃəz], \ɒ_z_m_ˈɒ_t_ɪ_k p_ɹ_ˈɛ_ʃ_ə_z]\
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The pressure required to stop osmosis through a semipermeable membrane between a solution and pure solvent. It is proportional to the osmolality of the solution. Osmotic shock is a sudden change in the osmotic pressure to which a cell is subjected, usually in order to cause it to lyse and lose its contents. (Dorland, 28th ed; Stedman, 26th ed)
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Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.