. Science of plant life, a high school botany treating of the plant and its relation to the environment. Botany. Fig. ioo. Diagrams to illustrate the passage of water through a membrane: A, molecule of inside water; B, molecule of outside water; C, membrane. Fig. ioi. Diagram to Ulustrate osmosis: A, sugar molecule; B, water molecule; C, selectively permeable membrane. the place of greater concentration to the place of less con- centration. Moreover, sugar is a highly soluble substance; that is, it has a great affinity for water, and the sugar particles tend to hold the water particles in cont
. Science of plant life, a high school botany treating of the plant and its relation to the environment. Botany. Fig. ioo. Diagrams to illustrate the passage of water through a membrane: A, molecule of inside water; B, molecule of outside water; C, membrane. Fig. ioi. Diagram to Ulustrate osmosis: A, sugar molecule; B, water molecule; C, selectively permeable membrane. the place of greater concentration to the place of less con- centration. Moreover, sugar is a highly soluble substance; that is, it has a great affinity for water, and the sugar particles tend to hold the water particles in contact with them inside the thistle tube. The sugar, like the water, tends^o pass from the place of greatest concentration but is restrained by the membrane from moving outward. If we close the upper end of the thistle tube, the water will continue to rise and compress the inclosed air. The pres- sure developed under these conditions is called osmotic pres- sure. If a large amount of sugar is put inside the tube, the water will rise rapidly and exert great pressure. If only a. 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 Transeau, Edgar Nelson, 1875-1960. Yonkers-on-Hudson, N. Y. , World Book Co.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1921
