. Lessons in botany. Botany. 32 BOTANY. draws some of the water from the cell-sap, the cells thus losing their turgid, ity and the tissues becoming limp or flaccid from the loss of water. 64. The beet slice becomes rigid again in water.—Now remove some of the slices of the beet from the salt solutions, wash them with water and then immerse them in fresh water. In the course of thirty minutes to one hour, if we examine them again, they will be found to have regained, partly or completely, their rigidity. Here again we infer from the former experiment with spirogyra that the substances in the ce
. Lessons in botany. Botany. 32 BOTANY. draws some of the water from the cell-sap, the cells thus losing their turgid, ity and the tissues becoming limp or flaccid from the loss of water. 64. The beet slice becomes rigid again in water.—Now remove some of the slices of the beet from the salt solutions, wash them with water and then immerse them in fresh water. In the course of thirty minutes to one hour, if we examine them again, they will be found to have regained, partly or completely, their rigidity. Here again we infer from the former experiment with spirogyra that the substances in the cell-sap now draw water inward ; that is, the diffusion current is inward through the cell walls and the proto- plasmic membrane, and the tissue becomes turgid again. Exercise 1 5. 65. Turgor is lost when the protoplasm is dead.—Place some slices of a red beet in alcohol; also some in hot water near the boiling point. Do the alcohol and the the hot water become colored ? Why ? Determine the condition of the. 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 Atkinson, George Francis, 1854-1918. New York, H. Holt and company
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