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  • The vascular cambium usually consist of two types of cells: * Fusiform initials (tall cells, [[wiktionary:axial|axial]]ly-oriented)
    2 KB (262 words) - 05:23, 6 April 2007
  • ...ticular plant together constitute the '''vascular tissue system''' of that plant. ...d with existing vascular tissue, maintaining its connection throughout the plant.
    3 KB (499 words) - 05:22, 6 April 2007
  • ...ndifferentiated cells ('''meristematic cells''') and found in zones of the plant where growth can take place - the [[root]]s and [[shoot]]s. ...tissues and initiation of new organs, providing the basic structure of the plant body.
    5 KB (819 words) - 05:20, 6 April 2007
  • ...ary thickening". As long as the vascular cambium continues to produce new cells, the stem or root will continue to grow in diameter. In woody plants, this ...se to [[cork (tissue)|thickened cork cells]] to protect the surface of the plant and reduce water loss. If this is kept up over many years, this process may
    3 KB (498 words) - 05:22, 6 April 2007
  • ...consisting of embryonic (incompletely differentiated) cells from which the plant grows. It is one of the many layers of [[bark]], between the cork and prima ...Cells that grow inwards from the phellogen are termed ''phelloderm'', and cells that develops outwards are termed ''phellem'' or cork (note similarity with
    2 KB (316 words) - 05:23, 6 April 2007
  • [[Image:Plant cell structure svg.svg|thumb|200px|Schematic of typical plant cell]] ...that permits water to seep into the intracellular voids. In addition, the cells store large amounts of sugars in the [[protoplasm]], decreasing its freezin
    1 KB (205 words) - 19:45, 18 December 2007
  • [[Image:Plant sap.jpg|thumb|Sap]] The watery contents of a plant; an indefinite and undescriptive term little used by botanists.{{SCH}}
    4 KB (731 words) - 19:12, 7 May 2009
  • ...organic nutrients, particularly [[sucrose]], a sugar, to all parts of the plant where needed. In [[tree]]s, the phloem is underneath and difficult to disti ...that conducts food materials throughout the plant. The end walls of these cells have many small pores and are called sieve plates and have enlarged [[plasm
    6 KB (916 words) - 05:19, 6 April 2007
  • Coleoptile consists of very similar cells that are all specialised to the fast [[stretch growth]]. They do not divide ...e dark side of the shoot and stimulates growth on that side. The natural [[plant hormone]] responsible for phototropism is now known to be [[indoleacetic ac
    2 KB (300 words) - 04:22, 6 April 2007
  • ...be it plant or animal. In [[plants]], this could be freezing cuts from the plant, or the [[seed]]s themselves. In animals, this is the freezing of [[sperm]] Recent reports have shown that using material from frozen sexual cells ''are'' possible, for example, Jazz, the [[African Wildcat]] kitten which w
    870 bytes (135 words) - 07:55, 16 September 2007
  • ...yma]] cells. Corms can be dug up and used to propagate or redistribute the plant (see, for example, [[taro]]). ...for their flowers, including ''[[Crocus]]'', ''[[Gladiolus]]'', ''[[Iris (plant)|Iris]]'', and ''[[Montbretia]]''
    1 KB (192 words) - 00:58, 4 April 2009
  • ...are loosely packed. They have large [[central vacuole]]s, which allows the cells to store nutrients and water. Parenchyma cells have a variety of functions;
    8 KB (1,180 words) - 05:21, 6 April 2007
  • ...se, the substance which walls it in and gives strength and solidity to the plant. Animals do not (as a rule, at least) have chlorophyl, and cannot construct ...n quantity of oxygen. However, in the further chemical activities of their cells, oxygen is absorbed and carbon dioxide is given off. In the plants which ar
    4 KB (689 words) - 01:47, 15 September 2009
  • | regnum = [[Plant]]ae | divisio = [[flowering plant|Magnoliophyta]]
    3 KB (402 words) - 18:00, 18 September 2007
  • ...s''' are elongated [[cell (biology)|cell]]s in the [[xylem]] of [[vascular plant]]s, serving in the transport of water. The build of tracheids will vary acc ...haracteristic of vascular plants to differentiate them from [[non-vascular plant]]s.
    2 KB (278 words) - 05:33, 6 April 2007
  • ...the term applied to the escape of water from leaves and other parts of the plant in the form of vapor.{{SCH}} ...lant in transpiration may be seen when it is known that a single sunflower plant will evaporate a pint of water from its leaves in a single day, and about s
    4 KB (727 words) - 17:01, 16 September 2009
  • | regnum = [[Plant]]ae (in part) ** [[Flowering plant|Magnoliophyta]]
    7 KB (936 words) - 19:47, 24 January 2008
  • ...carried out by counting the bubbles given off from the cut stem of a water plant exposed to sunlight in a well-aerated vessel of spring-water. The content o ...to sugar prior to transportation but may be removed to other organs of the plant, as, for example, to fleshy roots or tubers, where it may again be converte
    5 KB (840 words) - 04:18, 10 July 2009
  • ...the best known xylem tissue is [[wood]], though it is found throughout the plant. ...sible for the transportation of water and mineral nutrients throughout the plant. Xylem sap consists mainly of water and inorganic ions, although it can con
    8 KB (1,175 words) - 05:19, 6 April 2007
  • ...(four sets of chromosomes) is a type of [[polyploidy]] and is common in [[plant|plants]], and not uncommon in [[amphibian|amphibians]], [[reptile|reptiles] ...as haploid since they contain half the genetic information of [[somatic]] cells, but are not monoploid as they still contain three complete sets of chromos
    9 KB (1,261 words) - 12:42, 8 April 2007

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