The Resting Membrane Potential in Nerve and Skeletal Muscle Is

question 19

Multiple Choice

The resting membrane potential in nerve and skeletal muscle is determined primarily by

• A) extracellular sodium ion concentration.
• B) the ratio of intracellular to extracellular potassium ion.
• C) activation of voltage-gated sodium channels.
• D) activity of energy-dependent membrane ion pumps.

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Definitions:

Stalk Length

The measurement of the stem of a plant, from the base to the beginning of the leaves or flowers.

Narrow Sense Heritability

Narrow sense heritability is the proportion of the total phenotypic variance of a trait attributable to the additive effects of alleles (the additive genetic variance). This is the component of variance that causes offspring to resemble their parents, and it causes populations to evolve predictably in response to selection.

Genetics

The study of heredity, or how characteristics of organisms are transmitted from one generation to the next.

Environment

The surrounding or conditions in which an organism lives or operates, encompassing both natural and artificial elements.