Which of the following mechanisms does NOT contribute to selective permeability of the plasma membrane? A) The fluid nature of the lipid bilayer B) Presence of amphipathic phosphol... Which of the following mechanisms does NOT contribute to selective permeability of the plasma membrane? A) The fluid nature of the lipid bilayer B) Presence of amphipathic phospholipids C) High temperatures stabilizing the membrane D) Embedded membrane proteins
Understand the Problem
The question is asking to identify which specific mechanism does not play a role in the selective permeability of the plasma membrane. This involves understanding the functions of various components of the membrane and how they contribute to its properties.
Answer
C) High temperatures stabilizing the membrane
The final answer is C) High temperatures stabilizing the membrane
Answer for screen readers
The final answer is C) High temperatures stabilizing the membrane
More Information
Selective permeability in plasma membranes is mainly due to the fluid mosaic nature of the membrane. High temperatures usually increase membrane fluidity, potentially decreasing stability, rather than contributing positively to selective permeability.
Tips
A common mistake is assuming any condition such as temperature that affects membrane fluidity also directly contributes to selective permeability. It's important to distinguish factors that help maintain controlled permeability versus those that simply alter membrane characteristics.
Sources
- Chapter 8. Membrane Transport – Introduction to Molecular and Cell ... - rwu.pressbooks.pub
- Cell membrane - Wikipedia - en.wikipedia.org
- An Overview of Biomembrane Functions in Plant Responses to High ... - pmc.ncbi.nlm.nih.gov
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