How does the structure of a plasma membrane relate to its function in cellular transport?
Understand the Problem
The question is asking about the relationship between the structure of a plasma membrane and its role in cellular transport. Specifically, it aims to evaluate the function of the plasma membrane in regulating the entry and exit of substances in cells.
Answer
The plasma membrane's semipermeable lipid bilayer with proteins enables selective transport of materials.
The structure of the plasma membrane, comprising a semipermeable lipid bilayer with embedded proteins, enables selective transport. The bilayer controls the passage of certain molecules, while proteins facilitate active and passive movement, regulating materials entering and leaving the cell.
Answer for screen readers
The structure of the plasma membrane, comprising a semipermeable lipid bilayer with embedded proteins, enables selective transport. The bilayer controls the passage of certain molecules, while proteins facilitate active and passive movement, regulating materials entering and leaving the cell.
More Information
The fluid mosaic model describes the plasma membrane structure, explaining how the lipid and protein molecules can move sideways within the layer, allowing for flexibility and function in cellular transport.
Tips
A common mistake is overlooking the role of proteins in the membrane. They are crucial for facilitating specific transport processes.
Sources
- Structure of the Plasma Membrane - The Cell - NCBI Bookshelf - ncbi.nlm.nih.gov
- Structure of the plasma membrane (article) | Khan Academy - khanacademy.org
- Plasma Membrane (Cell Membrane) - genome.gov
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