An organelle with an internal cross-section showing a characteristic "9 + 2" morphology is the
A) mitochondrion.
B) vacuole.
C) Golgi apparatus.
D) flagellum.
E) cytoskeleton.

Question

Quizplus · Accepted Answer

The "9 + 2" morphology is a characteristic structure of flagella and cilia, which are responsible for movement in many cells. The other organelles listed (mitochondrion, vacuole, Golgi apparatus) do not have this structure. The cytoskeleton is a network of protein fibers that provide structural support and aid in movement, but it does not have the "9 + 2" structure.

An Organelle with an Internal Cross-Section Showing a Characteristic "9