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Passive Transport
Passive transport refers to the movement of substances across cell membranes without the use of energy. This study note explores key concepts such as diffusion, osmosis, the role of the cell membrane, concentration gradients, and how passive transport contributes to maintaining cellular homeostasis. Understanding these mechanisms is vital in comprehending the fundamental processes of substance…
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Active Transport
Active transport is a fundamental process in cellular biology that enables the movement of molecules across cell membranes against their concentration gradient. It requires the expenditure of energy, typically derived from ATP. This article explores the different types of active transport, including primary and secondary active transport, as well as cotransport. It highlights the significance…
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Osmosis
Osmosis is a process that occurs naturally in all living things, including plants and animals. It is a type of passive transport that involves the movement of water molecules across a selectively permeable membrane from an area of high concentration to an area of low concentration. This movement of water molecules helps maintain the balance…
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Patch Clamp Technique
The patch clamp technique is a widely used electrophysiological method for studying ion channels in cell membranes. This technique involves using a micropipette to form a gigaohm seal with a cell membrane, allowing for the manipulation of the electrical potential across the membrane. There are four main types of patch clamp, each with their own…
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