Name the processes by which substances move through cell membranes.
Understand the Problem
The question is asking to identify and name the processes by which substances move through cell membranes, including diffusion, osmosis, and active transport. It requires an understanding of these biological concepts and their distinctions.
Answer
Diffusion, osmosis, and active transport
The processes by which substances move through cell membranes include diffusion, osmosis, and active transport. Diffusion and osmosis do not require energy (passive transport), while active transport requires energy (ATP).
Answer for screen readers
The processes by which substances move through cell membranes include diffusion, osmosis, and active transport. Diffusion and osmosis do not require energy (passive transport), while active transport requires energy (ATP).
More Information
Diffusion and osmosis are examples of passive transport, meaning they do not require energy and occur due to concentration gradients. Active transport, however, requires energy in the form of ATP to move substances against their concentration gradient.
Tips
A common mistake is to assume all transport processes require energy. Remember that passive processes like diffusion and osmosis do not require energy.
Sources
- Passive transport and active transport across a cell membrane article - khanacademy.org
- Physiology, Active Transport - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
- How do things move across a cell membrane? - Khan Academy - khanacademy.org
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