Which of the Following Statements About the Suprachiasmatic Nucleus Is

question 495

Multiple Choice

Which of the following statements about the suprachiasmatic nucleus is FALSE?

• A) The suprachiasmatic nucleus is your internal biological clock.
• B) The suprachiasmatic nucleus governs the timing of circadian rhythms, including the sleep-wake cycle and the mental alertness cycle.
• C) The suprachiasmatic nucleus is a cluster of neurons located in the brain structure called the hypothalamus.
• D) The suprachiasmatic nucleus secretes a naturally occurring compound called adenosine that increases mental alertness.

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Definitions:

Solute Particles

Tiny components of a solution that are dissolved in a solvent, contributing to the chemical and physical properties of the solution.

Pure Water

Water that has been purified to remove impurities, consisting only of H2O molecules.

Acidity

A measure of the concentration of hydrogen ions in a solution, indicating how acidic or alkaline the solution is.

Hydrogen Ions

Positively charged ions (H+) that are formed when hydrogen atoms lose their electrons; a high concentration of hydrogen ions indicates acidity.