How to use Flagellum in a sentence

flagellum
  • The anterior flagellum is longer than the free part of the posterior one.

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  • The head of an ant carries a pair of elbowed feelers, each consisting of a minute basal and an elongate second segment, forming the stalk or "scape," while from eight to eleven short segments make up the terminal "flagellum."

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  • The multiplication of thongs for purposes of flogging is found in the old Roman flagellum, a scourge, which had sometimes three thongs with bone or bronze knots fastened to them.

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  • The result of cleavage in all cases is a typical blastula, which when set free becomes oval and develops a flagellum to each cell, but when not set free, it remains spherical in form and has no flagella.

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  • B, Anterior end of Euglena showing the flagellum with its swelling just in the hollow of the eye-spot.

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  • Besides the works already noticed, he wrote De arte critica (1597); De Antichristo (1605); Pro auctoritate ecclesiae in decidendis fidei controversiis libellus; Scaliger hypololymaeus (1607), a virulent attack on Scaliger; and latterly the anti-jesuitical works, Flagellum Jesuiticum (1632); Mysteria patrum jesuitorum (1633); and Arcana societatis Jesu (1635).

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  • Each of these limbs was twobranched, the external branch consisting of a slender fringed flagellum possibly respiratory in function, and the inner of a normal jointed ambulatory leg.

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  • Its length (inclusive of the flagellum) varies from 40-60 while its greatest width (including the undulating-membrane) is from 8-30, u; in the very wide individuals breadth is gained more or less at the expense of length.

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  • The point of insertion of the attached (posterior) flagellum into the body, and, consequently, the commencement of the undulating membrane may be almost anywhere in the anterior half of the body, but is usually near the extremity.

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  • One flagellum is entirely free and directed forwards; the other at once turns backwards and is attached to the convex or dorsal side of the body for the greater part of its length.

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  • In all other Trypanosomes there is only one flagellum, which is invariably attached to the body in the same manner as the posterior one of biflagellate forms. This flagellum, however, is most probably not to be considered homologous in all cases.

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  • The genus Trypanosoma, in which are included at present the great majority of Trypanosomes, is rather to be regarded as derived from a Heteromastigine ancestor, such as Trypanoplasma, by the loss of the anterior flagellum.

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  • Hence in this type the single flagellum represents the posteriorly-directed one of Trypanoplasma, and the end at which it becomes free is the hinder end.

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  • This always begins at the place where the attached flagellum emerges from the body; and its free edge is really constituted by the latter, which forms a flageIlar border.

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  • The duplication of the flagellum begins at its proximal end, that which is in relation with the kinetonucleus.

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  • Until recently the process has been considered as an actual longitudinal splitting of the flagellum, following upon the separation of the two daughter-kinetonuclei.

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  • H If the flagellar border splits, the membrane doubtless divides also; but where the flagellum is a new formation the membrane will be too.

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  • E - H shows the formation of the myonemes and the flagellar border (flagellum) of the undulating membrane, by means of a greatly elongated nuclear-spindle.

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  • These forms were elongated and spindle-like; and to one end of the body, near which the smaller nuclear element was situated, a well-developed flagellum was attached.

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  • Since then many other workers have obtained similar stages [see Leishman and Statham (38), Christophers (7)]; but however slender and Trypanosomelike the flagelliform parasites may appear, up till now no indications of an undulating membrane have been seen, and the kinetonuclear element is never far from the insertion of the flagellum.

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  • At the anterior end of the test is the apical plate from the centre of which projects a long flagellum as in many other Lamellibranch larvae.

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  • In Nucula delphinodonta the test is uniformly covered with short cilia, and there is no flagellum.

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  • The uncleanliness of the city was comparable to that of oriental cities at the present day, and, according to contemporary testimony (Garencieres, Angliae flagellum, London, 16 47, p. 85), little improved since Erasmus wrote his well-known description.

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  • When the eye-stalk is removed from a living lobster or prawn, it is found that under certain conditions a many-jointed appendage like the flagellum of an antennule or antenna may grow in its place.

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  • In the Malacostraca they are chiefly sensory, the endopodite forming a long flagellum, while the exopodite may form a lamellar " scale," probably useful as a balancer in swimming, or may disappear altogether.

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  • Thelyphonus and its allies, however, have a long tactile caudal flagellum, the homologue of the scorpion's sting; but its exact use is unknown.

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  • The body is bounded by a firm pellicle, often supplemented by an armour (" lorica ") of cuticular cellulose plates, with usually a marked longitudinal groove from which the anterior flagellum springs, and an oblique or spiral transverse groove for the second flagellum.

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  • Prorocentraceae (Schutt) (=the Adinida of Bergh); body surrounded by a firm shell of two valves without a girdle band; transverse groove absent; transverse flagellum coiled round base of longitudinal.

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  • V. cholerae builds only one flagellum per cell, suggesting that there must be a close coupling between flagellum biogenesis and cell division.

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  • This indicates a common ancestry, although no TTSS sequence homologues for the genes encoding the flagellum are found.

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  • The bacterial flagellum is driven by a proton motive force resulting from a gradient of protons.

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  • Polarity is clearly seen in Vibrio cholerae, a highly motile pathogen that swims by rapidly rotating a single polar flagellum.

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  • The phylum Chytridiomycota has traditionally been characterized on the basis of motile cells with a single posterior flagellum.

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  • The E coli flagellum has about 40 different kinds of proteins to make it work.

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  • According to James Heath in his Flagellum, " he was more famous for his exercises in the fields than in the schools, being one of the chief match-makers and players at football, cudgels, or any other boisterous game or sport."

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  • The feelers are generally simple in type, rarely showing serrations or prominent appendages; but one or two basal segments are frequently differentiated to form an elongate " scape," the remaining segments - carried at an elbowed angle to the scapemaking up the " flagellum "; the segments of the flagellum often bear complex sensory organs.

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  • The zoospore plasma membrane is continuous with the flagellar membrane (F) but only part of the flagellum is seen in this section.

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  • Hence in this genus the end bearing the free part of the flagellum is the anterior one.

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  • The other, the anterior flagellum, may or may not persist.

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