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Gurp

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TermDefinition
Selectively permeable permeable" describes a membrane, like a cell's plasma membrane, that controls which substances pass through, allowing essential molecules (water, nutrients, ions) in while blocking harmful ones and waste,
Passive transport the movement of substances across a cell membrane from a high to low concentration area (down the concentration gradient), without using cellular energy, relying instead on the natural tendency towards equilibrium,
Diffusion the passive movement of particles, molecules, or energy from a region of higher concentration to lower concentration,
Osmosis What Is Osmosis? – Definition, Types, Osmotic PressureOsmosis is the natural movement of water (solvent) across a semipermeable membrane from a high water concentration (low solute).
Active transport moves substances across cell membranes against their concentration gradient (low to high), requiring cellular energy (ATP) and carrier proteins (pumps) to bring needed molecules into a cell or remove waste,
Explain how materials move in and out of the cells primarily through Passive Transport (like diffusion/osmosis and facilitated diffusion, no energy needed, down concentration gradient) and Active Transport
Know the different types of membrane transport and how each works Passive Transport (no energy, down gradient: Simple Diffusion, Facilitated Diffusion, Osmosis) and Active Transport (requires energy, against gradient: Primary, Secondary, Vesicular),
Explain the difference between facilitated diffusion and diffusion. Diffusion moves small, uncharged molecules directly through the cell membrane's lipid bilayer, driven by concentration, while facilitated diffusion uses transport proteins (channels/carriers) for larger, polar, or charged substances, speeding up movement
Created by: user-1966872
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