Minggu, 08 November 2015

Morphological Structure And Function of Plant

Plants usually consists of the roots under the surface ground and shoots (shoot) which is above the ground.

  • Roots
Root dry weight typically 1/3 the entire plant body. Roots adapt to their duties, namely absorption, inaugural tegaknyatanaman and storage. Branching root complex and irregular because there jointed and surface area.

When the primary root into the main root is called a taproot and when the primary root atrophied replaced root fibers to form adventitious roots. Generally, plants with fibrous root systems, shallow rooted and sensitive to drought but rapid response to variations in fertilization.
Particular plant species enlarged and fleshy roots as a result of food storage in the form of starch and sugars.

  •  Pucuk
Shoots (Shoot) is a central axis with embelan-embelan. Rods (middle axis) which supports the leaves that produce food and connecting roots mengabsorbsiair and nutrients. Plant forms an upright and rigid rod that has a growing point of actively considered normal form, while other forms are considered aberrations. Modittkasi rod, it is very different from the morphology of the original, but struktumya still like stems that have books, leaves (or structures like scales and functions in the transport and storage, modification of the stem above the ground (crown, spur) and underground (bulb, corn, rhizome, tuber, etc.). Many of these modifications contains a number of important food reserves for the breeding of plants.

Buds (buds = bud) that embryonic stem nature. The buds are a source of potential for further growth. The bud can produce leaves, flowers or both are called leaf buds, flower buds and two.
Leaves in higher plants is a means of photosynthesis, leaf is embelan flat on the stem so that the expanding surface for light absorption. The anatomical structure of the vascular system in leaves and leaf veins comprise branching, branching leaf veins on dikotyl like nets were on monokotyl parallel.
Flower shows both structure and size. Sepals (calyx) is covering the flower petals while still buds. Petal (Corolla) ie crowns bunga.Stamen that male reproductive organs composed of anther containing pollen. Mature pollen anther issued through the broken wall.

Pistil (consisting of one or several carpel), namely the female reproductive organs, usually containing ovule and ovary that supports enlarged bud style called stigma. Ovule will develop into seeds were grown into buah.Bunga ovary consisting of Sepal, Petal, stamen and Fistil called full flower. Fruit botanically show adult ovary and other parts of the flower associated with it. Grouping pieces can be according to the number, which is contained in the ovary wall of the structure. Single fruit, composed of a single ovary. Dindingovary or pericarp is composed of Rxocarp (outer), mesocarp (middle), endocarp (deepest).

Single fruit if all pericarpnya called fleshy berry fruit buahberi.Buah berryatau hard outer skin (exocarp) is called Pepo Single fleshy fruit that has endocarp like a rock known as drupe or stone fruit. Dried fruit is fruit that the entire skin becomes dry and hard when ripe, dried fruit whose skin chapped cooking time eg on legume pods, dried fruit together with seeds pericarpnya called caryopsis. Fruit compound, derived from the flower which has many yan Receptacle Fistil the same. Individual fruit of the strawberry fruit compound (strobery), the fleshy part that is eaten is Receptaclenya.

  • Seeds
Mini plant seeds essentially in a state of unfettered development. Seeds that mature ovule containing an embryo and food reserve with integument differentiated into testa. Most grains contain a supply of foods derived from endosperm tissue (corn) and on the other cotyledons act sebagaialat seed storage makanan.Perkecambahan show changes unfettered growth into active growth.