A Solution with a PH of 7

question 9

Multiple Choice

A solution with a pH of 7.0 has _______ times ________ H⁺ than a solution of pH 10.

• A) 30; more
• B) 300; less
• C) 10³; more
• D) 10^-3; less
• E) none of these are correct.

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Definitions:

Nodes of Ranvier

Gaps in the myelin sheath of nerve fibers, which play a critical role in the fast propagation of nerve impulses.

Myelinated Axon

A nerve fiber enveloped in a myelin sheath, which increases the speed and efficiency of electrical signal transmission.

Ion Channels

Protein structures embedded in cell membranes that allow ions to enter or leave a cell, critical for various biological processes including nerve impulse transmission and muscle contraction.

Myelin Sheath

The fatty layer that surrounds and insulates nerve fibers in the central and peripheral nervous systems, facilitating the rapid transmission of nerve impulses.