Thursday, May 26, 2011

Week Three

Well, two days have passed. The other`s have plants that are growing like nuts (cause most nuts are seeds), and mine has yet to sprout. Even this one person`s flower has a lot of its organs out already.

Until my stupid plant begins to grow, I`ve decided to pass the time with researching different aspects of my plant accross the next few postings. I guess today I`ll start with organs. Firstly, a tissue is a group of cells with a common function or structure. But an organ consists of several different types of tisses that together they can carry out cerain functions.When looking at plants, one of the most important and basic functions is to absorb water and minerals from the soil. To do so, plants have a root system and a shoot system. Like nearly all angiospermsévascular plants, it seems like plant need both for survival. huh. The shoot system consists of the stems aand leaves and relies on the root system for water and minerals whereas the root system and it would starve without the organic nutrients imported from the shoot system.


The root is the organ that anchors the plant in the soil as it also absorbs water, minerals and stores organic nutrients. Its also common that most eudicots and gymnosperms have a taproot system which gives rise to lateral roots. Although the tomato plant is not a gymnosperm it is a eudicot, and taproots can be common amongst angiosperms as well.


The stem is the organ which consists of nodes. These nodes are the points where the leaves are attached and the internodes are the stem segments between nodes. The region between the leaf and the stem may have an axillary bud, which has the potential to form a lateral shoot. The terminal buds, or apical meristems are the region of rapidly dividing cell where the plan may continue to grow.

The leaves are the main photosynthetic organ. Leaves generally consist of a flatened blade and a stalke called the peticole which joins the leafe to a node of the stem. However, considering that monocots and eudicots differ in leaves, eudicots (such as my tomato plant) have a multibranched network of major veins whereas monocots have parrelel major veins.

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