. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. SUGARS 45 are so called since thev respectively split up, under certain cir- cumstances, into two or man)- molecules of monosaccharides. Among the monosaccharides found in plants, the commonest are dextrose or glucose (popularly' known as grape-sugar) and fructose or levulose (fruit-sugar), whilst of the disaccharides sucrose or saccharose (cane-sugar) and maltose (malt-sugar) deserve mention. Owing to their simple molecules they produce a relativety high osmotic pressure, although for solutions of equal stre
. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. SUGARS 45 are so called since thev respectively split up, under certain cir- cumstances, into two or man)- molecules of monosaccharides. Among the monosaccharides found in plants, the commonest are dextrose or glucose (popularly' known as grape-sugar) and fructose or levulose (fruit-sugar), whilst of the disaccharides sucrose or saccharose (cane-sugar) and maltose (malt-sugar) deserve mention. Owing to their simple molecules they produce a relativety high osmotic pressure, although for solutions of equal strength this is greater in the case of the monosaccharides. Fig. 21.—Sphere-crystals of inulin [In.] in the cells of the tuberous root of a Dahlia. than in that of the disacchaiides. For this reason no doubt grape-sugar and cane-sugar, the two which function as food- reserves, are only found in very minute quantities in seeds (except for the cane-sugar in the Sweet Corn, a variety of Maize). On the other hand, grape-sugar is one of the principal carbo- hydrate-reserves in the bulb of the Onion, whilst cane-sugar occurs in the Sugar Beet {Beta), in the pith of the stem of the Sugar Cane {Sacchariim officiiianim), and in the Sugar Maple {Acer sacchannum) (see p. 124). The sugar is extracted from the sliced Beet with the aid of warm water, whilst in the case. 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 Fritsch, Felix Eugene, 1879-; Salisbury, E. J. (Edward James), Sir, b. 1886. London, G. Bell and sons ltd.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpl, booksubjectplants
