The white bar above represents 10 microns(0.01mm Below are some organisms and cells drawn to approximate scale virus(0.05 to 0. I microns) bacteria(0.5 to 1. 5 microns) d blood cell (5 microns) lymphocyte(5 to 8 microns human sperm(60 microns)The white bar above represents 10 microns (0.01mm). Below are some organisms and cells drawn to approximate scale. virus(0.05 to 0.1 microns) bacteria (0.5 to 1.5 microns) red blood cell (5 microns) lymphocyte (5 to 8 microns) human sperm (60 microns)