Tracheids

Word TRACHEIDS
Character 9
Hyphenation N/A
Pronunciations N/A

Definitions and meanings of "Tracheids"

What do we mean by tracheids?

A tracheid cell.

Synonyms and Antonyms for Tracheids

  • Synonyms for tracheids
  • Tracheids synonyms not found!!!
  • Antonyms for tracheids
  • Tracheids antonyms not found!

The word "tracheids" in example sentences

Altogether, the structure of coniferous woods is very simple and regular, the bulk being made up of the small fibres called tracheids, the disturbing elements of pith rays and resin ducts being insignificant, and hence the great uniformity and great technical value of coniferous woods. ❋ Unknown (N/A)

As shown in the figure, the tubes, cells or "tracheids" are decorated on their walls by circlet-like structures, the "bordered pits," sections of which are seen more magnified as _a_, _b_, and _c_, Fig. 2. ❋ Unknown (N/A)

Water is pulled through the "tracheids" in the trunk - a series of tubes formed by the dead wood cells. ❋ Unknown (2010)

· The rings comprise minute tubular or fibrous cells (tracheids) which transport moisture and nutrients to all parts of the tree. ❋ Unknown (1988)

The wood is mainly composed of tracheids, there being no vessels formed except the first year. ❋ Douglas Houghton Campbell (N/A)

The vertical tubes are wood fibres, in this case all "tracheids." _m_, medullary or pith ray; _n_, transverse tracheids of ray; _a_, ❋ Unknown (N/A)

These pits are in the nature of pores, covered by very thin membranes, and serve as waterways between the cells or tracheids. ❋ Unknown (N/A)

They contain not only rays, and in many cases tracheids, but also thick-walled cells called fibres and wood parenchyma for the storage of such foods as starches and sugars. ❋ Unknown (N/A)

Besides the tracheids, there are a few small cells with oblique ends, and with some granular contents. ❋ Douglas Houghton Campbell (N/A)

_D_, longitudinal section of a branch, showing the form of the tracheids and the bordered pits upon their walls. _m_, medullary ray, × 150. ❋ Douglas Houghton Campbell (N/A)

The porous spring-wood and radial gray tracts are partly composed of smaller vessels, but chiefly of tracheids, like those of pine, and of shorter cells, the "wood parenchyma," resembling the cells of the medullary rays. ❋ Unknown (N/A)

Although the tracheids have their permeable portions or pits in their walls, liquids cannot pass through them with the greatest ease. ❋ Unknown (N/A)

_C_, longitudinal section of the fibro-vascular bundle of the leaf stalk, showing tracheids with ladder-shaped markings, × 150. ❋ Douglas Houghton Campbell (N/A)

The dark lines on the side of the smaller piece (1, Fig. 2) appear when magnified (in 2, Fig. 2) as tiers of eight to ten rows of cells, which run radially (parallel to the rows of tubes or tracheids), and are seen as bands on the radial face and as rows of pores on the tangential face. ❋ Unknown (N/A)

They are formed in pairs, one on each side of the wall of adjacent tracheids, and are separated by a very delicate membrane (_F_, _p_, _G_, _y_). ❋ Douglas Houghton Campbell (N/A)

In pines and spruces the cells of the upper and lower rows of each tier or pith ray have "bordered" pits, like those of the wood fibre or tracheids proper, but the cells of the intermediate rows in the rays of cedars, etc., have only "simple" pits, _i. e._, pits devoid of the saucer-like "border" or rim. ❋ Unknown (N/A)

These tracheids are characterized by the presence of peculiar pits upon their walls, best seen when thin longitudinal sections are made in a radial direction. ❋ Douglas Houghton Campbell (N/A)

As shown in Fig. 2, the cells of the medullary or pith are smaller and very much shorter than the wood fibre or tracheids, and their long axis is at right angles to that of the fiber. ❋ Unknown (N/A)

The xylem (_F_, _xy. _) of the fibro-vascular bundle is composed of tracheids, much like those of the ferns; the phloem is composed of narrow cells, pretty much all alike. ❋ Douglas Houghton Campbell (N/A)

The course of the tracheids and the rays are at right angles to each other. ❋ Unknown (N/A)

Cross Reference for Tracheids

  • Tracheids cross reference not found!

What does tracheids mean?

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