Structure and Function of Stem

Rod on plants have shape and size are very diverse. There branched stems and some are not branched. There is a rod that is small and some are very large in size, such as the type of Giant Sequoia trees. This tree has a height of 85 meters with an estimated age of about 2200 to 2700 years. This tree is considered to be the largest tree in the world in terms of volume. The volume of this tree in 2002 amounted to 1487 cubic meters. Sherman tree with Giant Sequoia type, located in Sequoia National Park in Visalia, California.

Stem usually serves to support the parts of a plant that is above ground, uphold and strengthen the plant body, with ramifications extending the field of photosynthesis, road transport water and minerals from ground, and the results of photosynthesis can be distributed to all parts of the plant until to roots. In addition, as a place to store food reserves. For example, the sugar cane plant, cactus, and potatoes. Stem can also serve as a breeding tool such as cassava stems, ginger, and mango crops.

Structure and Function of Root

Morphological structure is a picture of the outside of the body of an organism. The structure of higher plants, such as Angiosperm and Gymnosperm can be described as follows. Morphological structure of higher plants generally consist of roots, stems, and leaves. At a certain stage in its development, plants can form flowers, fruits and seeds. The structure of plant morphology Angiosperm group is related to the condition of the environment in which his life. At the same time, plants have to extract resources from the land and air. Water and minerals from the ground, while the air is where the availability of CO2 and sunlight can not penetrate the soil. Therefore, the plant has a root system under the ground and shoot system is above ground level. Each system need each other.

Matter

     In the last post, I discussed the particles that make up matter, now we will discuss the matter in detail

     Matters can be found in daily life around you. You can use matters fulfil you needs. When hungry you need food, when thirsty you need water. You also need dirt, rocks or sand to building house.

     Soil, rocks, paraffin, gasoline, wood, cloth, and your own body and also various materials you see everyday are matter. The various forms of matters have one similarity, which is having mass and occupying space. So, matters are everything which has mass and volume (occupying space).

     All matters in nature will experience change, nothing is eternal. Matter will experience change in mass, volume and form, even change to another matter.For example, water evaporates , wood burns into ashes, corpse change into dirt, and fruits root. Therefore, the only thing that eternal in only the one and only God. Matter is classified into 2 large groups, which are pure substance or single substance and mixture.

Scientific Fact 5

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Structure and Function of Plant Tissue

     Tissue in plants can be grouped into two categories, namely (1) meristematic tissue or embryonic tissue and (2) permanent tissue. Meristematic tissue is the tissue of young active cells constantly divide to form the primary structure on the plant, while the permanent tissue is a tissue that has undergone differentiation. Permanent tissue consists of simple tissue and complex tissue. Simple tissue include parenchymal tissue, chollenchyma tissue, and sclerenchyma tissue. Complex tissue include dermal tissue and vascular tissue.

A. MERISTEMATIC TISSUE
       Meristematic tissue is the tissue cells are able to divide by mitosis continuously (are embryonal) to increase the number of cells in the plant body. Meristematic found in certain parts of the plant. In general, the cells making thin-walled meristematic tissue, and relatively rich in protoplasm. Meristematic cell vacuoles are very small and scattered throughout the protoplasm. This tissue consists of cells that are not differentiated. The ability of meristematic tissue to mitosis continuously causes plants to grow tall and big. Based on where the plant meristematic tissue divided into three types: apical meristematic, lateral meristematic, and Intercalary meristematic.