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The movement of materials across the cell membrane without using cellular energy is called passive transport. The movement of materials against a concentration difference is known as active transport. Active transport requires energy.

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Dennis O'Hara

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2y ago
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13y ago

The movement of materials across the cell membrane without using cellular energy is called passive transport. The movement of materials against a concentration difference is known as active transport. Active transport requires energy.

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12y ago

Active transport requires the input of chemical energy to transport substances through membrane proteins whereas passive transport does not need chemical energy to occur. Diffusion and osmosis occur naturally due to the concentration gradient which exists between two liquids and are a form of passive transport.

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Q: How is active transportation different from passive transportation?
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