Match the following types of particle movement to their descriptions: Simple Diffusion, Facilitated Diffusion, Active Transport.
Understand the Problem
The question is asking to match specific types of particle movement (Simple Diffusion, Facilitated Diffusion, and Active Transport) to their corresponding descriptions, which involves understanding the principles of cellular processes.
Answer
Simple diffusion is small, nonpolar molecules without energy; facilitated diffusion is larger, polar molecules without energy; active transport requires energy to move molecules against their gradient.
Simple diffusion involves small, nonpolar molecules moving through the cell membrane without energy. Facilitated diffusion involves larger polar molecules or ions moving through protein channels without energy. Active transport requires energy (usually in the form of ATP) to move molecules against their gradient.
Answer for screen readers
Simple diffusion involves small, nonpolar molecules moving through the cell membrane without energy. Facilitated diffusion involves larger polar molecules or ions moving through protein channels without energy. Active transport requires energy (usually in the form of ATP) to move molecules against their gradient.
More Information
Simple diffusion does not require membrane proteins, while facilitated diffusion uses transmembrane proteins. Active transport is critical in maintaining concentration gradients across membranes.
Tips
A common mistake is assuming that all types of transport require energy or that simple diffusion is applicable for molecules of all sizes.
Sources
- Passive and Active Transport - Khan Academy - khanacademy.org
- 11.8: Transport Across Cell Membrane - Chemistry LibreTexts - chem.libretexts.org
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