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Active and Passive Transport

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Ben Gibson

on 11 October 2012

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Transcript of Active and Passive Transport

By: Ben Gibson Active and Passive
Transport Active Transport is a cell's way of
getting materials into the cell using energy.
There are many kinds of Active Transport,
including endo- and exocytosis. Some examples
of endocytosis are phago- and pinocytosis Active Transport Passive Transport is the cell's way of taking in
materials without using energy.
Some examples include Diffusion, Facilitated
Diffusion and Osmosis passive transport A type of Active Transport the end endocytosis A type of Passive Transport Facilitated diffusion A type of Active Transport Exocytosis A type of Passive Transport Diffusion A type of Passive Transport Osmosis The process of substances moving
across a membrane. Particles move
from an area of high concentration
inside the cell to an area of low
concentration outside the cell.
Or vice-versa Some particles cannot diffuse across
the cell membrane, so the diffusion of
these substances is facilitated by
protein channels opening up and
allowing things to pass through. Osmosis is simply the diffusion of water. Endocytosis literally means "cell eating", and
it is a way a cell takes in bulk. A type of Endocytosis phagocytosis In phagocytosis, extensions of cytoplasm
surround a particle and package it within
a food vacuole. The cell then engulfs it. A type of Endocytosis Pinocytosis In Pinocytosis, tiny pockets form along
the cell membrane, fill with liquid, and
pinch off to form vacuoles within the cell. Exocytosis is the way that cells release bulk.
The membrane of the vacuole surrounding
the material fuses with the cell membrane,
forcing the contents out of the cell.
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