Consider Two Sodium Solutions Separated by a Cation-Permeable Membrane

question 81

Short Answer

Consider two sodium solutions separated by a cation-permeable membrane. One solution (we'll call it "outside") is 5mM. Each terminal from a 9V battery is attached to a wire, which in turn is dipped into one of the solutions (the positive terminal is placed in the "outside" solution). What concentration of potassium would need to be present on the other side of the membrane (the "inside") to ensure that no net movement of ions occurs between the two chambers at room temperature? Set up (but do not solve) an equation to find the answer.

Identify and understand different methods of gathering information.

Differentiate between types of questions (open, closed, multiple choice, etc.) and their applications.

Recognize the steps and strategies in conducting effective research.

Understand the concept and importance of a working purpose in research.

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Definitions:

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The act of feeding infants with breast milk directly from the mother's breast, which provides essential nutrients and antibodies.

Gauze Pad

A thin, transparent fabric with a loose open weave, used in medicine to dress wounds and prevent infection.

Reflex Response

An automatic, involuntary reaction to a stimulus that does not involve a conscious decision.

Automatically Grasp

An instinctive or inherent understanding or recognition of concepts or situations without the need for conscious reasoning.