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Membrane Enclosed Organelles definitions

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  • Eukaryotic Cell
    A cell type containing membrane-bound compartments, each with specialized functions, distinguishing it from prokaryotic forms.
  • Organelle
    A membrane-bound compartment within a cell, each performing a distinct and essential cellular function.
  • Nucleus
    A double-membraned structure housing genetic material and serving as the site for RNA synthesis.
  • Rough Endoplasmic Reticulum
    A membrane network studded with ribosomes, crucial for protein synthesis and transport.
  • Smooth Endoplasmic Reticulum
    A tubular membrane system lacking ribosomes, important for lipid and steroid synthesis and vesicle formation.
  • Golgi Apparatus
    A stack of flattened membranes responsible for modifying, sorting, and packaging proteins and lipids.
  • Mitochondria
    A double-membraned organelle generating ATP through oxidative phosphorylation, often called the cell's powerhouse.
  • Lysosome
    A membrane-bound vesicle containing enzymes for intracellular degradation and recycling of cellular waste.
  • Vacuole
    A membrane-bound sac for storage of water, nutrients, or waste, especially prominent in plant cells.
  • Cytoskeleton
    A network of protein filaments providing structural support, facilitating movement, and organizing cellular components.
  • Chloroplast
    A double-membraned organelle in photosynthetic cells, enabling photosynthesis and carbon fixation.
  • Peroxisome
    A small, membrane-bound compartment specializing in the breakdown of toxic molecules via oxidation.
  • Vesicle
    A small, membrane-bound sac used for transport of substances within the cell.
  • Endosymbiont Theory
    A hypothesis proposing that certain organelles originated from engulfed prokaryotic cells, explaining their unique features.
  • Invagination
    A process where the plasma membrane folds inward, forming internal compartments that evolve into organelles.