. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). 128 MOVEMENT OF CILIA AND FLAGELLA pattern; if the tail were considerably longer, this form of beating would have the appearance of what has been regarded as the '* typical flagellar beat ". When bending waves of this form are passed backwards along a flagellum, the water exerts forces against the tail in such a way. Fig. 30. Simplified diagram of forces exerted by the water on two elements of a sperm tail of a sea urchin. The elements X and Y are being moved transversely because the bending waves in w
. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). 128 MOVEMENT OF CILIA AND FLAGELLA pattern; if the tail were considerably longer, this form of beating would have the appearance of what has been regarded as the '* typical flagellar beat ". When bending waves of this form are passed backwards along a flagellum, the water exerts forces against the tail in such a way. Fig. 30. Simplified diagram of forces exerted by the water on two elements of a sperm tail of a sea urchin. The elements X and Y are being moved transversely because the bending waves in which they occur are moving backwards. Thus, element X is moving to the left and element Y to the right. The forward components Fx and Fy act together, but the transverse components Tx and Ty are in opposition. (The forward movement of the sperm is neglected.) that the whole body is moved forwards. The forces acting on various parts of the body will differ, and at any instant they will have both transverse and longitudinal components for all elements of the tail that are moving ( excepting those at the crests of the waves). The maximum longitudinal forces will be exerted on those elements of the tail which are moving at a maximum. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sleigh, Michael A. Oxford, New York, Pergamon Press
Size: 1015px × 2463px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
