There are two main ways molecules move across membranes, the difference being related to whether cellular energy is used. Passive mechanisms such as diffusion do not consume energy, but active transport requires energy to be carried out.
Is diffusion active or passive transport?
Passive
Diffusion. Diffusion is a passive transport process. A single substance tends to move from the high concentration area to the low concentration area until the concentration is the same throughout the room. You know the diffusion of substances in the air.
The main difference between diffusion and active transport is that diffusion is a passive transport method in which molecules move across the cell membrane through a concentration gradient, whereas active transport transports molecules against a concentration gradient. It requires cell energy.
Learn more about passive transport here: https://brainly.com/question/17293052
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