Every Node in a Doubly Linked List Has Two Pointers

question 2

Multiple Choice

Every node in a doubly linked list has two pointers: ____ and ____.

• A) top; bottom
• B) back; next
• C) current; forward
• D) previous; forward

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Definitions:

Sodium/Potassium Pump

A vital cell membrane protein that pumps sodium out of cells and potassium into cells, maintaining the necessary concentration gradients for nerve impulse transmission and muscle contractions.

Positively Charged Ions

Particles, either atoms or molecules, which have become positively charged by losing one or more electrons.

Depolarization

A decrease in the electrical charge across a cell membrane, usually in neurons or muscle cells, leading to the firing of an action potential.

Neural Impulse

An electrical signal that travels along a neuron, enabling neurons to communicate with each other and with other parts of the body.