Examlex

Solved

The Following Question Refers to Comparative Concentrations, Permeabilities, and Potentials

question 204

Multiple Choice

The following question refers to comparative concentrations, permeabilities, and potentials under various circumstances. Indicate the relationship between the two items listed in each situation by filling the appropriate letter in the blank using the following answer code:
-A. concentration of K+ in the intracellular fluid of a nerve cell immediately before an action potential
B. concentration of K+ in the intracellular fluid of a nerve cell immediately following an action potential (assume that the Na+-K+ pump has not yet acted)


Definitions:

University of Maryland

A public research university located in College Park, Maryland, known for its extensive research and educational programs.

Pressure Flow Theory

Explanation of how a difference in turgor between sieve elements in source and sink regions pushes sugar-rich fluid through a sieve tube.

Source Region

Geographic areas where air masses form, acquiring specific temperature and humidity characteristics.

Phloem Transport

The movement of sugars and other metabolic products downwards from the leaves through the phloem.

Related Questions