What is the flow of molecules in passive transport?

The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport. Active transport moves molecules against their concentration gradient, from an area of low concentration to an area of high concentration.

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it takes hundreds of years to become stable.

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they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

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