Which of the Following Is a Principle of the Fluid

question 87

Multiple Choice

Which of the following is a principle of the fluid mosaic model of cell membrane structure?

• A) Phospholipids form a bilayer that is largely impermeable to water-soluble molecules.
• B) Phospholipids consist of a polar head and a nonpolar tail made of three fatty acid chains.
• C) All proteins associated with the cell membrane are contained in a fluid layer on the outside of the cell.
• D) The lipid bilayer is a solid at body temperature, thus protecting the cell.

---

Definitions:

Nonsystematic Variance

The portion of an investment's variance that is due to factors specific to its issuer and not related to wider market movements.

Market Index

An indicator used to represent the performance of specific sectors or the market as a whole, often compiled from a set of selected stocks.

Active Portfolio

A portfolio that undergoes frequent trading and adjustments by a manager in an attempt to outperform the market or a specific benchmark.

Treynor-Black Model

A portfolio optimization model that blends a passive and an active portfolio for potential risk-adjusted returns superior to the market.