A Dissolved Substance That Has the Ability to Either Remove

question 37

Multiple Choice

A dissolved substance that has the ability to either remove or add H⁺ and OH^- ions to resist pH changes is

• A)a solution.
• B)pure water.
• C)a buffer.
• D)a solvent.

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Definitions:

Hypothalamus

A small region of the brain's base responsible for hormonal regulation, temperature control, eating, drinking, and many other critical physiological processes.

MRI Scan

A medical imaging technique that uses a magnetic field and radio waves to create detailed images of the organs and tissues within the body.

PET Scan

Positron Emission Tomography, a diagnostic imaging test that helps reveal how tissues and organs are functioning by using a radioactive drug to show activity.

Thalamus

A critical structure in the brain that acts as a relay station, directing sensory and motor signals to other parts of the brain.