, Volume 34, Issue 4, pp 547–547 | Cite as

Concerning the concept ‘organelle’

  • A. Frey-Wyssling


Since the essential cytological functions are endergonic processes, the organelle cannot be defined without considering the necessary energy transfer. Therefore, a sensible definition may read: The organelle is a cytoplasmic structure with functional energy consumption.


Energy Consumption Energy Transfer Functional Energy Cytoplasmic Structure Cytological Function 
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  1. 1.
    A. Frey-Wyssling, Comparative Organellography of the Cytoplasm, vol. 3. Protoplasmatologia. Springer, New York 1973.Google Scholar
  2. 2.
    Ph. Matile, in: The Lytic Compartment of Plant Cells, vol. 1, p. 1. Springer, New York 1975.Google Scholar
  3. 3.
    K. E. Wohlfarth-Bottermann and G. Isenberg, in: Dynamics and Molecular Basis of the Contractile System ofPhysarum in Contractile Systems in Non-Muscle Tissues, p. 297. Ed. Perry. Elsevier/North Holland Biochemical Press, 1976.Google Scholar

Copyright information

© Birkhäuser Verlag 1978

Authors and Affiliations

  • A. Frey-Wyssling
    • 1
  1. 1.Institute of General BotanySwiss Federal Institute of TechnologyZürich(Switzerland)

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