A New Drug Is Released to Aid in Weight Loss

question 44

Multiple Choice

A new drug is released to aid in weight loss. It stimulates the sympathetic system to increase heart rate by:

• A) inhibiting the release of catecholamines.
• B) altering the threshold potential.
• C) decreasing the conduction time through the AV node.
• D) increasing the influx of calcium.

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Definitions:

Concise

Expressing or covering much in few words; brief in form but comprehensive in scope.

Electron Density

A measure of the probability of an electron being present in a specific location around an atom or molecule, important in determining molecular shape and bond strength.

Electron Wave

A quantum mechanical description of electrons as wave-like particles, significant in explaining the behavior of electrons in atoms and molecules.

π Bonds

Covalent chemical bonds resulting from the sidewise overlap of two atomic p orbitals, characterized by electron density above and below the axis of the bonded atoms.