Tag: diffusion

Carrier Mediated Facilitated diffusion explained: Lecture and notes of Transport across the cell membrane

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In carrier mediated facilitated diffusion, a carrier (also called a trans porter) is used to move a solute down its concentration gradient across the plasma membrane. The solute binds to a specific carrier on one side of the membrane and […]

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Powders: Powder handling, manufacturing and equipments, special care and problems in manufacturing of powders and MCQs for GPAT, NIPER, Pharmacist and Drug Inspector Exam

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Powder handling: Powder Mixing – Powder mixing is an operation that serves to make two or more components uniformly distributed in the powder bed. Mechanisms – There are three main mechanisms involved in the mixing process, related to the different […]

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Concept of diffusion: Laws of diffusion, Steady state diffusion, Measurement of diffusion and MCQs for GPAT, NIPER, Pharmacist and Drug Inspector exam

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Diffusion is defined as the mass transfer of individual molecules of a substance (diffusant), brought about by random molecular motion along a concentration gradient. Diffusion is caused by the Brownian motion of atoms or molecules and results in the decrease […]

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