Assume That a Membrane That Is Permeable to Na⁺ but Not

question 122

Multiple Choice

Assume that a membrane that is permeable to Na⁺ but not to Cl^- separates two solutions. The concentration of sodium chloride on side 1 is much higher than on side 2. Which of the following ionic movements will take place?

• A) Na⁺ will move until its concentration gradient is dissipated (i.e., until the concentration of Na⁺ on side 2 is the same as the concentration of Na⁺ on side 1).
• B) Cl^- will move down its concentration gradient from side 1 to side 2.
• C) a membrane potential, negative on side 1, will develop.
• D) a membrane potential, positive on side 1, will develop.
• E) more than one of these answers.

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Definitions:

Nietzsche

A German philosopher who challenged the foundations of traditional moral and philosophical beliefs, famous for his concepts of the "Will to Power," "Übermensch," and the "Death of God."

Correspondence Theory

A philosophical theory regarding truth, holding that the truth or falsity of a statement is determined by its correspondence to facts or reality.

Relativism

The doctrine that knowledge, truth, and morality exist in relation to culture, society, or historical context, without absolute universal standards.

Method of Doubt

A philosophical methodology attributed to René Descartes involving skepticism towards one's beliefs to discover what can be known with certainty.