Which One of the Big Five Typically Decreases by Age

question 213

Multiple Choice

Which one of the Big Five typically decreases by age 40?

• A) agreeableness
• B) extroversion
• C) openness to experience
• D) neuroticism

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Definitions:

Adenylyl Cyclase

Adenylyl cyclase is an enzyme found in many organisms that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic adenosine monophosphate (cAMP), a second messenger important in many biological processes.

cAMP

Cyclic adenosine monophosphate, a second messenger important in many biological processes, including the regulation of glycogen, sugar, and lipid metabolism.

Protein Kinase

An enzyme that modifies other proteins by chemically adding phosphate groups to them, playing a critical role in many cellular processes.

Steroid Hormone

A type of hormone derived from cholesterol, including testosterone, estrogens, and cortisol, which play critical roles in bodily functions.