Studies in Electro-Physiology (Animal And Vegetable)
The book Studies in Electro-Physiology (Animal And Vegetable) was written by author Baines, Arthur E Here you can read free online of Studies in Electro-Physiology (Animal And Vegetable) book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Studies in Electro-Physiology (Animal And Vegetable) a good or bad book?
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This regular intermittence con- stitutes what is often spoken of as rhythm. The rhythm which is so easily seen in the case of pulsating vacuoles is characteristic also of those less obvious changes in proto- plasmic motility which lead to the variations of turgidity in different organs, particularly in those which are growing. During the growth in length of a symmetrical organ, such as a stem or root, the apex points successively to all points of the compass. This is the result of a rhythmic va...riation of the turgidity of the cells of the cortex. If we consider a longitudinal band of such cells, we find that at a certain moment the ceils are at their point of maximum turgidity, and the growing apex is made to bend over in a direction diametrically opposite to this band. The turgidity of this band then gradually declines to a minimum, and again increases slowly to a maximum. If we conceive of the circumference of the organ as divided into a number of such bands, we can gain an idea of the changes in turgidity which cause the circumnatation.
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