What Is a Functional Group

question 94

Multiple Choice

What is a functional group?

• A)a set of atoms bonded together that give molecules containing them similar properties
• B)a group that adds function
• C)a group of hydrocarbons that can be used to make new materials
• D)a set of molecules that are grouped together to form a functional material
• E)none of the above

---

Definitions:

Ependymal Cells

Glial cells that line the ventricles in the brain and the central canal of the spinal cord, involved in the production of cerebrospinal fluid.

Oligodendrocytes

Oligodendrocytes are glial cells in the central nervous system that produce myelin, a substance crucial for the insulation of nerve fibers.

Voltage-Gated

Refers to ion channels that open or close in response to changes in membrane potential, critical for nerve impulse conduction.

Node of Ranvier

Gaps in the myelin sheath of nerve fibers where the axonal membrane is exposed, facilitating rapid signal conduction along the neuron.