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Chloroplast definitions

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  • Chloroplast
    Organelle in plant cells with a double membrane, responsible for converting light energy into chemical energy through photosynthesis.
  • Photosynthesis
    Process occurring in plant organelles that transforms light energy into chemical energy, producing sugars essential for plant growth.
  • Outer Membrane
    External boundary of a plant organelle, providing protection and regulating the movement of molecules into the organelle.
  • Inner Membrane
    Internal boundary of a plant organelle, controlling passage of materials and maintaining the organelle's internal environment.
  • Intermembrane Space
    Region between two membranes of a plant organelle, playing a role in molecular transport and compartmentalization.
  • Stroma
    Gel-like internal matrix of a plant organelle, housing enzymes and structures necessary for energy conversion processes.
  • Thylakoid
    Flattened disc structure within a plant organelle, serving as the primary site for light-dependent energy conversion reactions.
  • Granum
    Stack of disc-like structures within a plant organelle, increasing surface area for efficient energy conversion.
  • Plastid
    Family of plant cell organelles, each specialized for functions like energy conversion, pigment storage, or starch accumulation.
  • Proplastid
    Undifferentiated precursor organelle in plant cells, capable of developing into various specialized organelles.
  • Chromoplast
    Specialized plant organelle containing pigments other than chlorophyll, contributing to coloration in plant tissues.
  • Amyloplast
    Plant organelle specialized for the synthesis and storage of starch, typically found in non-photosynthetic tissues.
  • Grana
    Multiple stacks of disc-like structures within a plant organelle, collectively enhancing the efficiency of energy conversion.
  • Proteinoplast
    Plant organelle variant involved in the storage and modification of proteins, derived from undifferentiated precursors.