The Ribosome Is Thought to Be

question 37

Multiple Choice

The ribosome is thought to be:

• A) an example of a catalyst that has survived from the RNA world.
• B) unique to eukaryotes.
• C) a ribozyme.
• D) A and C.
• E) A, B, and C.

---

Definitions:

Myelination

The process of forming a myelin sheath around the nerves to increase the speed at which electrical impulses are conducted.

Axons

Long, threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.

Action Potential

A rapid and temporary electrical signal that travels along the membrane of a neuron, facilitating neurotransmission.

Impulse Control

The ability to resist or delay an impulse, drive, or temptation to act and is a component of self-regulation.