Practice question
Question
The fluidity of lipid membranes increases with:
Explanation
Increasing polyunsaturated fatty acids correctly describes the effect or change asked about in this question. In Lipids without annotations, understanding cause-and-effect relationships is essential for predicting biological outcomes. Increasing polyunsaturated fatty acids occurs because of specific molecular interactions, thermodynamic principles, or regulatory mechanisms that govern this biological process. The other options (Increasing cholesterol content, Increasing saturated fatty acids, and Decreasing temperature) describe either opposite effects, effects that occur under different conditions, or changes associated with unrelated processes.