Which organelle is membranous?

Study for the Galen Anatomy and Physiology (AandP) 1 Theory Exam 2. Gain confidence with flashcards, pinpoint areas needing focus, and strengthen understanding through detailed explanations. Excel in your exam with comprehensive preparation!

Multiple Choice

Which organelle is membranous?

Explanation:
The concept being tested is whether an organelle is enclosed by a membrane. A membranous organelle is surrounded by a phospholipid bilayer. The mitochondrion is membranous, having a double membrane (outer and inner) that creates distinct compartments and houses the machinery for oxidative phosphorylation. In contrast, ribosomes lack a surrounding membrane, centrioles are protein structures inside the cytoplasm, and the cytoskeleton is a network of filaments with no membrane. So the membranous organelle here is the mitochondrion.

The concept being tested is whether an organelle is enclosed by a membrane. A membranous organelle is surrounded by a phospholipid bilayer. The mitochondrion is membranous, having a double membrane (outer and inner) that creates distinct compartments and houses the machinery for oxidative phosphorylation. In contrast, ribosomes lack a surrounding membrane, centrioles are protein structures inside the cytoplasm, and the cytoskeleton is a network of filaments with no membrane. So the membranous organelle here is the mitochondrion.

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