Physiological Botany1886 |
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Página 9
... carbon dioxide of the air or the water in which the plant is growing , and , returning the oxygen to the air , re- tain the carbon , which they are able to mix with the ele- ments of water in such proportions as to build up a mole- cule ...
... carbon dioxide of the air or the water in which the plant is growing , and , returning the oxygen to the air , re- tain the carbon , which they are able to mix with the ele- ments of water in such proportions as to build up a mole- cule ...
Página 208
... Carbon dioxide , and possibly other acid substances , are parted with by roots in this way ; and thus assist subsequent absorption by dissolving substances which could not otherwise pass into the plant . Storing of Nutriment by Roots ...
... Carbon dioxide , and possibly other acid substances , are parted with by roots in this way ; and thus assist subsequent absorption by dissolving substances which could not otherwise pass into the plant . Storing of Nutriment by Roots ...
Página 214
... carbon dioxide and oxygen . The experiments of Boussin- gault would also indicate that , in some cases at least , car- bon oxide is evolved with the free oxygen . Draper and E EXHALATION OF GASES . 215 many others likewise believe that.
... carbon dioxide and oxygen . The experiments of Boussin- gault would also indicate that , in some cases at least , car- bon oxide is evolved with the free oxygen . Draper and E EXHALATION OF GASES . 215 many others likewise believe that.
Página 215
... carbon dioxide and oxygen gases by the leaves vary according to the circum- stances in which they are placed . Thus , when the green leaves of a healthy plant are exposed to sunlight , all ex- periments show that carbon dioxide is ...
... carbon dioxide and oxygen gases by the leaves vary according to the circum- stances in which they are placed . Thus , when the green leaves of a healthy plant are exposed to sunlight , all ex- periments show that carbon dioxide is ...
Página 216
... carbon dioxide and evolution of oxygen are thus taking place by day , it is supposed by most observers that in the absence of light a contrary action occurs - oxygen being then absorbed , and carbon dioxide exhaled . At the same time ...
... carbon dioxide and evolution of oxygen are thus taking place by day , it is supposed by most observers that in the absence of light a contrary action occurs - oxygen being then absorbed , and carbon dioxide exhaled . At the same time ...
Otras ediciones - Ver todas
The Student's Guide to Structural, Morphological and Physiological Botany Robert Bentley Sin vista previa disponible - 2016 |
The Student's Guide to Structural, Morphological and Physiological Botany Robert Bentley Sin vista previa disponible - 2016 |
Términos y frases comunes
absorbed absorption albumen anther antheridia antherozoids apex appearance archegonia arranged axil axis bark becomes bracts branches buds called calyx cambium carbon dioxide carpels cavity cell-wall cells Fig cellular chalaza chlorophyl coat color commonly composed compound consists contain corolla cotyledons dehiscence described developed Dicotyledonous dissepiments elongated embryo embryo-sac epidermis Exogenous stems external Ferns fertilization fibro-vascular bundles filaments flowers fluid frequently fruit germination glands granules green grow growth hairs hence hilum inclosed inflorescence inner kind layer leaf leaves less lobes macrosporangia matters medullary rays membrane micropyle Monocotyledonous nature nucleus occur organs outer ovary ovule oxygen parenchyma pericarp petals petiole pistil pith pitted placenta pollen pollen-cells portion produced protoplasm radicle reproductive roots seeds sepals separate species spiral vessels sporangium spores stalk stamens starch stigma stomata structure style substance surface surrounded sutures takes place termed Thallophytes thickened tion tissue transverse usually valves vary walls whorls wood wood-cells woody