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what differentiates passive transport from active

(Answer choices in picture)

NEED HELP QUICK what differentiates passive transport from active (Answer choices-example-1
User Bisi
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Answer:

I would say ATP is needed for active transport to occur

User Yan Foto
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B- in passive transport molecules move down the concentration gradient, in active they move up the concentration gradient which is why ATP is required.
User Lee Kowalkowski
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