Euglena pp 142-167 | Cite as

Motor Activity

  • Jerome J. Wolken


The protozoan flagellates are the simplest organisms for quantitative studies of the relationship among various stimuli and their responses. Three kinds of motion can be distinguished when Euglena is observed through a microscope: pulsation, sidewise rotation, and forward swimming. Sidewise rotation and forward swimming are controlled by the whipping of the flagellum at the anterior end of the organism.


Motor Activity Action Spectrum Light Quantum Euglena Gracilis Dominant Wavelength 
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Copyright information

© Meredith Publishing Company 1967

Authors and Affiliations

  • Jerome J. Wolken
    • 1
  1. 1.Biophysical Research LaboratoryCarnegie Institute of TechnologyPittsburghUSA

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