Heart Rate Increases at the Beginning of a Bout of Light

question 2

Multiple Choice

Heart rate increases at the beginning of a bout of light exercise due to______________.

• A)a withdrawal of the sympathetic nervous system
• B)a withdrawal of the parasympathetic nervous system
• C)an increase in the outflow from the parasympathetic nervous system
• D)none of the above answers are correct

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Definitions:

Alkyl Group

A group of atoms derived from an alkane, containing only carbon and hydrogen atoms, arranged in a chain.

Aspartic Acid

An amino acid that plays a vital role in the biosynthesis of proteins and in neurotransmitter release and synthesis.

pI

The isoelectric point of a molecule, which is the pH at which the molecule carries no net electrical charge.

Predominant Form

Predominant form refers to the most stable or commonly occurring form of a chemical species under given conditions.