A Base

question 46

Multiple Choice

A base

• A) has a value of 7 on the pH scale.
• B) is a chemical that adds hydrogen ions to a solution.
• C) is a chemical that absorbs hydrogen ions from a solution.
• D) has a value below 7 on the pH scale.

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Definitions:

Glial Cells

Supportive cells in the nervous system that do not conduct nerve impulses but provide nutrition, support, and protection for neurons.

Neurons

Specialized cells in the nervous system that transmit information through electrical and chemical signals.

Myelin Sheath

A fatty covering that surrounds axons of some nerve cells, facilitating faster transmission of electrical impulses.

Myelin

A fatty substance that surrounds neurons' axons, helping to speed up the transmission of electrical signals in the nervous system.