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Elodea leaf Stock Photos and Images
RMB217NJ–WATER WEED ELODEA LEAF CELLS ANACHRIS SP AQUATIC PERENNIAL PLANT SHOWING CELL WALL CHLOROPLASTS 200X STUDIO
RF2CX12AW–Detailed view of the cells of a leaf of waterweed as seen through a microscope. Biology experiment.
RF2D9B240–Lagarosiphon major (= Elodea crispa), common names include African elodea, curly waterweed, oxygen weed and South African oxygen weed
RF2CGE5HM–ROMANIA - CIRCA 1966: stamp printed by Romania, shows Marine Flora, Elodea Canadensis rich, circa 1966
RFT9RB9X–Santo Domingo, Dominican Republic 04/22/2019, pond with aquatic plants in the colonial zone of santo domingo
RMW22P9E–Archive image from page 104 of The cytoplasm of the plant. The cytoplasm of the plant cell cytoplasmofplant00guil Year: 1941 •• • ••• • • •«, /.••.• • •• • m Fig. 57. — Chondriosomes and plastids in leaf cells of Elodea canadensis, I, in embryonic cells, II, at the beginning of differentiation. o, the chondriome; b, plastids and c, chondriosomes drawn separately. Ill, later stage, o, plastids; b, chondriosomes. . On the basis of research carried out exclusively in the phanero- gams, Meves (1918) expressed a theory which is the exact opposite of that held by most of the authors just discussed
RMPFK9HG–. Cytology. Cytology. Figure 3-13. Photomicrograph of Chloroplasts in Living Cells of Elodea Leaf. 33 / CHAPTER 3. 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 work.. Wilson, G. B. (George Bernard), 1914-; Morrison, John H. (John Herbert), 1927-. New York, Reinhold
RF2D6MW1K–Green leaf grains also known as chloroplasts in cells of a waterweed seen through a microscope. Biology experiment.
RF2D9B230–Lagarosiphon major (= Elodea crispa), common names include African elodea, curly waterweed, oxygen weed and South African oxygen weed
RF2CMRA1Y–Waterweed in inverted test tube filled with water. Biological experiment to demonstrate the production of oxygen in leaf green. Used in biology class.
RMRD3HN1–. Cytology. Cytology. Figure 3-13. Photomicrograph of Chloroplasts in Living Cells of Elodea Leaf. 33 / CHAPTER 3. 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 work.. Wilson, G. B. (George Bernard), 1914-; Morrison, John H. (John Herbert), 1927-. New York, Reinhold
RFT9RB75–Santo Domingo, Dominican Republic 04/22/2019, pond with aquatic plants in the colonial zone of santo domingo
RMPFK7RA–. The cytoplasm of the plant cell. Plant cells and tissues; Protoplasm. •• • ••• • • •«, /.••%.• • •• • m Fig. 57. — Chondriosomes and plastids in leaf cells of Elodea canadensis, I, in embryonic cells, II, at the beginning of differentiation. o, the chondriome; b, plastids and c, chondriosomes drawn separately. Ill, later stage, o, plastids; b, chondriosomes. On the basis of research carried out exclusively in the phanero- gams, Meves (1918) expressed a theory which is the exact opposite of that held by most of the authors just discussed. This eminent cytologist observed that, in the meristem
RMEBR15N–Nuttall waterweed, Western waterweed (Elodea nuttallii), sprout, Germany, North Rhine-Westphalia
RM2AJMN2M–An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language . ns 5 to 10. S. gentianoides, L. (Fig. 3, pi. 96.) Orange-grass. (Hypericummulieaxde, Walt.). Stems wiry, 3 to 9 in. high. In sandy fields. Com-mon. June-Oct. 4. ELODEA, Pursh. (Triadenum, Raf.) Perennial herbs growing in marshes. Leaves opposite and withoutlobes or teeth. Flowers in terminal clusters also in smaller clusters inthe leaf axils. Calyx of 5 divisions; petals 5; stamens 9 or more in3 groups. Alternating wit
RMPG1BXP–. The natural history of the farm; a guide to the practical study of the sources of our living in wild nature. Natural history. Pig. 13. Leaf-form in three common sub- merged plants whose leaves ^ow in whorls surrounding the stem at the nodes: a, the common water-weed (Elodea canadensis or Philotria canadensis); 6, the water horn- wort (Ceratophyllum demersum); c, the water milfoil (MyriO' phyUum).. Fig. 14. Outlines of four common kinds of floating leaves: a, the floating river- weed (Potamogeton natans); 6, the spatter-dock {Nymphaa advena); c, the white water- lily iCastoillia odorata); d,
RMRDYH73–. An introduction to vegetable physiology. Plant physiology. PBOPERTIES OP VEGETABLE PEOTOPLASM 349 filled with granules, as in their absence it is so transparent that it is impossible to say whether it is in motion or not. In the leaf of Elodea we find a very good instance of this movement. Each cell contains a considerable quantity of water, so that the protoplasm for the main part is found as a layer linirjg the cell-wall. This layer consists of two parts, an outer one in which are situated the chloroplasts, and an inner one in which are large numbers of fine granules. It is this inner laye
RMRHP8KP–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. CALCIUM AND AGING IN ELODEA 387 MATERIALS AND METHODS Freshly cut stalks of Elodca canadensis (Anachrls canadensis} grown in a glass aquarium at room temperature were employed in all the experiments. The stalks used were a minimum of six inches in length and a maximum of ten inches. The relative age of an Elodca leaf is easy to determine by the position of the leaf on the stalk. Young leaves are located at the apex of the stalk and old leaves are located at the base of the stalk. The technique used for the study of the calci
RMRE0KHC–. Experimental plant physiology for beginners. Plant physiology. 52 EXPERIMENTAL PLANT PHYSIOLOGY Put two vessels, each containing a piece of Elodea, into the dark, until the plants are depleted of starch. Then surround one of the vessels with ice, put a thermometer into each, and place both in a good light. Observations.—No starch is formed in the plant contained in the vessel that is surrounded with ice, but it is formed in large quantities in the control experi- ment. Inference.—Warmth is necessary for the formation of starch. Experiment 33 Aim.—To find out if the colour of the leaf affects
RMRDXW46–. An introduction to vegetable physiology. Plant physiology. Fie. 7.âCells feom the Leaf of Elodea. x 300. «, nucleus; p, protoplasm, in which are embedded numerous chloro- piasts. The arrows show the direction of the movement of the protoplasm. Fig. 8.âTwo Cells fbom a â Staminal Haib of Trades- cantia. x 300. The arrows show the direction of the movement of the protoplasm. movements are spoken of as rotation when the current flows uniformly round the cell, or as circulation when the path has a more complicated course. It has been mentioned that, with very rare exceptions, all cells contain
RMRDXW48–. An introduction to vegetable physiology. Plant physiology. Fie. 7.âCells feom the Leaf of Elodea. x 300. «, nucleus; p, protoplasm, in which are embedded numerous chloro- piasts. The arrows show the direction of the movement of the protoplasm. Fig. 8.âTwo Cells fbom a â Staminal Haib of Trades- cantia. x 300. The arrows show the direction of the movement of the protoplasm. movements are spoken of as rotation when the current flows uniformly round the cell, or as circulation when the path has a more complicated course. It has been mentioned that, with very rare exceptions, all cells contain
RMRDXXEW–. Principles of modern biology. Biology. 586 - Heredity and Evolution. Fig. 30-11. This cactus is one of the extreme xerophytes (see text). (Courtesy of C. J. Alexopaulos.) (for example, certain cacti) the leaves are re- and roots display a relatively simple struc- duced to mere spiny structures (Fig. 30-11), ture. In Elodea, for example, the roots are and the compact fleshy stem takes over the scarcely more complex than holdfasts (p. photosynthetic functions of the leaves. Other xerophytes, however, possess thick fleshy leaves in which large reserves of water may 238), and the stem and leaf c
RMRE29BK–. An introduction to vegetable physiology. Plant physiology. Fig. 7.âCells ekom the Leaf of Elodea. X 500. 71, nucleos; j>, protoplasm, in which are embedded numerous chloro- plasts. The arrows show the direction of the movement of the protoplasm.. Fig. 8.âTwo Cells from a STAMnfAL Haib of Trades- cantia. X 300. The arrows show the direction of the movement of the proto- plasm. under a high power of the microscope. In other plants of terrestrial habit, e.g. certain cells of Tradescantia and Chelidonium, a similar streaming of the protoplasm is observable (fig. 8). Such movements are spoken
RMRDGXR6–. The natural history of the farm : a guide to the practical study of the sources of our living in wild nature . Natural history. Fig. 13. Leaf-form in three common sub- surrounding the stem at the nodes: a, the common water-weed (Elodea canadensis or Philotria canadensis); b, the water horn- wort (Ceratophyllum demersum); c, the water milfoil (Myrio- phyllum).. Fig. 14. Outlines of four common kinds of floating leaves: a, the floating river- weed (Potamogeton naians); b, the spatter-dock (Nymphaa advena); c, the white water- lily (Castaillia odorata); d, the water shield {Brasenia peltata)..
RMRE01B2–. Essentials of biology presented in problems. Biology. COMPOSITION OF LIVING THINGS 29 an onion shows well, as do thin sections of a young stem, as the bean or pea. I have found one of the best places to study a tissue and the cells of which it is composed in the leaf of a green water plant, Elodea. In this plant the cells are large, and not only the outline of the cells, but the move- ment of the living matter -nithin the cells, may easily be seen, and most of the parts described in the next paragraph can be demonstrated. Cells. —JAceU may be defined as a tiny mass of living matter, either l
RMRD2W7Y–. The cytoplasm of the plant cell. Plant cells and tissues; Protoplasm. •• • ••• • • •«, /.••%.• • •• • m Fig. 57. — Chondriosomes and plastids in leaf cells of Elodea canadensis, I, in embryonic cells, II, at the beginning of differentiation. o, the chondriome; b, plastids and c, chondriosomes drawn separately. Ill, later stage, o, plastids; b, chondriosomes. On the basis of research carried out exclusively in the phanero- gams, Meves (1918) expressed a theory which is the exact opposite of that held by most of the authors just discussed. This eminent cytologist observed that, in the meristem
RMRDXTMY–. Plant physiology. Plant physiology. Fig. I.—Leaf in position in a measuring tube, for demonstration of absorption of carbon dioxide and elimination of oxygen during photo- synthesis. Fig. 2.—Elimina- tion of oxygen bubbles by Elodea in sunlight. Fig. 3.—Collection of oxygen water plants in light. from liberated by water plants; this solution is yellow when prepared, but turns blue in the presence of oxygen. If a shpot of Elodea, or other aqmtic, is placed in a dilute solution of this reagent and exposed to sunlight, the solution surround- ing the leaves becomes blue in a few minutes.^/ §3. C
RMRDCNJG–. The natural history of the farm; a guide to the practical study of the sources of our living in wild nature. Natural history. Pig. 13. Leaf-form in three common sub- merged plants whose leaves ^ow in whorls surrounding the stem at the nodes: a, the common water-weed (Elodea canadensis or Philotria canadensis); 6, the water horn- wort (Ceratophyllum demersum); c, the water milfoil (MyriO' phyUum).. Fig. 14. Outlines of four common kinds of floating leaves: a, the floating river- weed (Potamogeton natans); 6, the spatter-dock {Nymphaa advena); c, the white water- lily iCastoillia odorata); d,
RMRH9HD1–. Botany, an elementary text for schools. Botany. Vi THE MAKING OF THE LIVING MATTER. deep glass jar containing fresh spring or stream water, place fresh pieces of the common water-weed elodea (or anacharis). Invert a test tube over the stem of the fun- nel. In sunlight bubbles of oxygen will arise and collect in the test tube. When a sufficient quantity of oxygen has collected, a lighted taper inserted in the tube will glow with a brighter flame, showing the presence of oxygen. A sim- pler experiment is to immerse an active leaf of lettuce or other plant in water, and to observe the bubbles w
RMRE29BT–. An introduction to vegetable physiology. Plant physiology. THE GENERAL STEUCTUEE OE PLANTS neria, Nitella, Elodea (fig. 7), and others, a streaming move- ment of tlie granules the protoplasm contains can be detected. Fig. 7.—Cells ekom the Leaf of Elodea. X 500. 71, nucleos; j>, protoplasm, in which are embedded numerous chloro- plasts. The arrows show the direction of the movement of the protoplasm.. 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 perfectl
Search Results for Elodea leaf Stock Photos and Images (57)
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