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What organelles are found in animal cells but not in plant cells?

Question

What organelles are found in animal cells but not in plant cells?

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Solution

In animal cells, there are several organelles that are not found in plant cells. Here are the key organelles unique to animal cells:

  1. Lysosomes: These are membrane-bound organelles that contain digestive enzymes. They help in breaking down waste materials and cellular debris. Lysosomes play a crucial role in autophagy, allowing the cell to recycle its own components.

  2. Centrioles: Found in pairs, centrioles are important for cell division. They play a critical role in organizing the microtubules that aid in the separation of chromosomes during mitosis and meiosis.

  3. Cilia and Flagella: While plant cells can have some adaptations, structures such as cilia and flagella are more characteristic of animal cells. These organelles are involved in movement, allowing cells to either move themselves or to move fluid over their surfaces.

  4. Intermediate Filaments: Though both plant and animal cells contain cytoskeletal structures, some types of intermediate filaments, such as keratins, are more commonly found in animal cells, providing structural support.

In summary, while both plant and animal cells share many organelles, lysosomes, centrioles, cilia and flagella, and certain intermediate filaments are specifically unique to animal cells.

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