Which of the Following Statements Concerning Membrane Transport Across the Plasma

question 84

Multiple Choice

Which of the following statements concerning membrane transport across the plasma membrane is true?

• A) Polar molecules are transported more easily than nonpolar molecules.
• B) Lipid-soluble substances pass through the membrane by dissolving in the lipid bilayer.
• C) Water cannot move through the membrane.
• D) Generally, cations pass through the membrane more easily than anions.
• E) All molecules are moved across by active transport.

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Definitions:

Solution

A homogeneous mixture composed of two or more substances, where the solute is dissolved in the solvent.

Table Salt

A white crystalline substance that gives seawater its characteristic taste and is used for seasoning or preserving food, chemically known as sodium chloride (NaCl).

Water

A clear, flavorless, scentless, and almost colorless substance that is the primary component of the Earth's hydrosphere and the liquids found in every recognized living organism.

Hydrogen Bond

A delicate association between two molecules facilitated by the electrostatic attraction between a proton present in one and an electronegative atom in the other.