American Academy of Professional Coders (AAPC) Practice Exam

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Prepare for the American Academy of Professional Coders exam with our comprehensive quiz, featuring multiple-choice questions designed to enhance your coding skills and knowledge. Ideal for aspiring medical coders looking to succeed in the certification process.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which component of a cell is located at its center?

Chromosomes
Cytoplasm
Nucleus
Cell membrane

The correct answer is: Nucleus

The nucleus is the component of a cell that is located at its center and serves as the control center of the cell. It houses the cell's genetic material (DNA) and is responsible for regulating various cellular activities, including growth, metabolism, and reproduction. By storing and managing the information necessary for the cell’s function and heredity, the nucleus plays a crucial role in the life of the cell. In contrast, chromosomes are the structures within the nucleus that contain the genetic information, but they do not represent the central component themselves. The cytoplasm is the jelly-like substance that fills the cell and contains all organelles, but it surrounds the nucleus rather than being located at the center. The cell membrane is the protective outer layer that surrounds the entire cell, providing structure and controlling the movement of substances in and out of the cell, but it is not positioned at the center. Therefore, the nucleus stands out as the central organelle that governs the functions of the cell.