Vacuoles sentence example

vacuoles
  • Bacteria and tiny flagellates are pulled down toward the vacuoles by this flow.
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  • Or more probably it may be the weight of definite particulate structures in their vacuoles.
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  • Young cells ar full of cytoplasm, old cells generally contain a large vacuole or vacuoles, containing cell-sap, and with only a thin, almost invisible layer of cytoplasm on their walls.
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  • Within the cytoplasm are found manifestations of functional activity, in the form of digestive vacuoles, granules, fat, glycogen, pigment, and foreign bodies.
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  • It can develop vacuoles, or rather fine bubbles of carbonic acid gas in its cytoplasm, to float up to the surface of the water.
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  • A reddish-brown body, known as the eyespot, is usually situated near the limits of the hyaline portion, and in the protoplasm contractile vacuoles similar to those of lower animals have been occasionally detected.
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  • Besides the other spaces are definite rounded or oval vacuoles with a permanent pellicular wall termed by Schutt " pusules "; these open by a duct or ducts into the longitudinal groove.
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  • The hallmark lesions of these diseases are vacuoles and plaques, which are small round formations consisting of deposits of a protein called amyloid.
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  • Macrophages represented up to 30% of the cells present and appeared to contain large intracytoplasmic vacuoles.
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  • We have seen the food vacuoles frequently to support this either in the living state or by inspection of books on the matter.
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  • Spirostomum forms food vacuoles that are quite large initially.
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  • Despite painstaking efforts, the fact that the fresh strains possessed contractile vacuoles while the original did not leaves considerable doubt.
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  • Several forms of secondary digestive vacuoles were recognized in these cells.
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  • Assembly occurs during budding, characteristically into cytoplasmic vacuoles rather than at the cell surface.
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  • Phagocytosis is an uptake mechanism based on a complex rearrangement of the actin cytoskeleton that delivers large extracellular particles into intracellular vacuoles.
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  • The implications of these findings in relation to the current model for protein sorting to storage vacuoles are discussed.
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  • There is good evidence that the storage pools of nutrients present in plant vacuoles are compositionally quite distinct in different leaf cells.
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  • Transpiration.In the case of terrestrial plants, the continual renewal of the water contained in the vacuoles of the protoplasts demands a copious and continuous evaporation.
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  • As new cells are continually formed in the merismatic mass those which are farthest from the apex gradually cease to divide and a different process of growth takes place in them, which is associated more particularly with the formation of the vacuoles, consequent upon the establishment of coniiderable hydrostatic pressure in them, thus causing the bulk of the cells to be greatly enlarged.
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  • Food vacuoles are used to transport the food through the cell.
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  • Oedogonium sp., intercalated growth by insertion of new piece(a) n., nucleus; p.v., pulsating vacuoles; e.s., eyespot.
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  • They enlarge and diminish, and are possibly excretory like the " contractile vacuoles " of other Protista; though it has been suggested that by their communication with the medium they subserve nutrition.
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  • Evidence is not wanting, however, that the cytoplasm must be regarded as, fundamentally, a semifluid, homogeneous substance in which by its own activity, granules, vacuoles, fibrils, &c., can be formed as secondary structures.
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