Which of These Statements Best Describes the Difference Between Traditional

question 40

Multiple Choice

Which of these statements best describes the difference between traditional spectroscopy and NMR?

• A) Spectroscopy requires that the sample be in a magnetic field.
• B) NMR utilizes high energy electromagnetic radiation , whereas  spectroscopy does not.
• C) NMR utilizes the transitions of hydrogen nuclei , whereas  spectroscopy utilizes the transitions of electrons.
• D) NMR and spectroscopy are essentially the same.
• E) Both B and C are correct.

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Definitions:

Node of Ranvier

Gaps in the myelin sheath of nerve fibers where the axonal membrane is exposed to the extracellular space, facilitating rapid signal transmission.

Action Potential

A rapid rise and subsequent fall in membrane potential across a cellular membrane, crucial for the propagation of electrical signals in nerve and muscle cells.

Local Potentials

Electrical changes in neurons that are confined to a small region, serving as the initial response to stimuli, potentially leading to action potentials.

Membrane Potential

The voltage difference across a cell's plasma membrane due to the differential distribution of ions.