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Question
Biology
Posted 6 months ago
What are the categories of transport across the cell membrane
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Answer from Sia
Posted 6 months ago
Answer
The categories of transport across the cell membrane include passive transport (diffusion, osmosis, facilitated diffusion) and active transport (primary active transport, secondary active transport, and bulk transport).
Solution
a
Passive Transport: This does not require energy and includes diffusion, osmosis, and facilitated diffusion
b
Active Transport: This requires energy, usually in the form of ATP, and includes primary active transport, secondary active transport, and bulk transport (endocytosis and exocytosis)
Key Concept
Transport across the cell membrane is categorized based on whether or not energy is required.
Explanation
Passive transport moves substances down their concentration gradient without energy, while active transport moves substances against their concentration gradient using energy.

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