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  • Membrane-Bound Organelles: A Comprehensive Guide
    No, not all organelles have a membrane.

    Organelles with membranes:

    * Nucleus: Contains the cell's genetic material (DNA).

    * Endoplasmic reticulum (ER): A network of interconnected membranes involved in protein synthesis and lipid metabolism.

    * Golgi apparatus: Modifies, sorts, and packages proteins and lipids.

    * Lysosomes: Contain enzymes that break down cellular waste and debris.

    * Mitochondria: Powerhouses of the cell, responsible for energy production.

    * Peroxisomes: Involved in detoxification and lipid metabolism.

    * Vacuoles: Storage compartments for water, nutrients, and waste products.

    Organelles without membranes:

    * Ribosomes: Sites of protein synthesis.

    * Centrioles: Involved in cell division.

    * Cytoskeleton: A network of protein filaments that provides structural support and facilitates movement.

    Therefore, some organelles, such as ribosomes and centrioles, are non-membrane-bound.

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