Which of the Following Is a Sign of Aging in the Nervous

question 9

Multiple Choice

Which of the following is a sign of aging in the nervous system?

• A) Increased blood flow to the brain
• B) Shortened attention span
• C) Enlargement of the substantia nigra in the brain
• D) Increase in acetylcholine
• E) Improved thought processing

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Definitions:

Increasing Acidity

Refers to a trend or condition that leads to an increase in the acidic character or strength of substances.

Conjugate Acid

A species formed by the reception of a proton by a base, characterized by having one more proton and an increased positive charge compared to the original base.

Acetone

A volatile, colorless liquid with the formula (CH3)2CO, used as a solvent and in the production of various chemicals.

Electrophile

A chemical species that accepts an electron pair in order to bond to a nucleophile during a chemical reaction.