www.Primo.com: Differences Cells Animal and Plant Cells

Animal cells and plant cells of words familiar to all friends of science, by classification of living things 5 Kindgom of animals and plants are grouped in different kingdom.
Some important points to be studied is the difference of these cells from the cell wall and vacuoles her.

A. Structure of Cells Animal And Plant Cells.

The basic structure of animal cells and plant cells are the same. But in its development, both types of cells are progressing in accordance with the environment causing various kinds perbedaa, one of which is the role of ecological, plants are food manufacturers, while the role of animals eat plants and other animals.

B. Differences Table Cells Animal And Plant Cells.

Plant cells.

- Have a cell wall

- Has a large vacuole

- Having plastids, kromoplas, and leukoplas

- Do not have centrioles

Animal cells.

- Do not have a cell wall

- Have small vacuoles

- Not having plastids

have centrioles

C. Plant Cells.

Plants have the parts of cells that distinguishes it from animal cells.

Parts of the cell are as follows:

1. Walls Sel.

The cell wall is the outermost part of the cell. Plant cell walls serves as a protective and supporting plant cells. The cell walls are formed when cells divide is called the primary wall and having thickened, turned into a secondary wall. Primary cell wall is a thin membrane composed of cellulose fibers. Cellulose fibers are very strong its tensile strength.

Among the walls of two adjacent cells, there is a middle lamela, composed of magnesium and calcium in the form of a gel pektat. Between two neighboring cells, there is a pore. Through this pore plasma two neighboring cells are connected by threads of plasma known as plasma modesmata.

Stem plants are generally harder than the human body. A, man can pinch the other man, but can not pinch woody trees. This is because the outside of the plant cells composed of the cell wall very hard. The main ingredient in the form of a cell wall constituent of wood substance, namely cellulose which is composed of glucose. Besides cellulose, the cell walls also contain other substances, such as pectin, hemi cellulose, and glycoproteins.

2. Vacuoles

Vacuole is a membranous organelles containing vacuole fluid. Vacuoles actually contained in animal cells and plant cells. However, vacuole in plants have form and function more real than vacuoles in animal cells, plant the young have cells with a small size, but the plants grew large and mature, vacuoles appear enlarged, even dominating the cytoplasm and urged the cytoplasm to the edge the cell wall.

Basically the cytoplasm is hypertonic fluids to the environment, causing osmosis, ie vacuoles absorb water. As a result, vacuoles enlarged and increase the pressure of water in it (turgor pressure) and urged the vacuole membrane (Tonoplas) towards the cytoplasm. Cytoplasm forward pressure towards the cell wall. Turgor pressure allows you to adjust the osmotic movement of fluid from outside into the cells. The cell walls strong enough to withstand the pressure cytoplasm, limiting the volume of the cytoplasm, and prevent cell rupture. On the other hand, pressure from outside the cell to tonoplas strong enough to maintain cell turgiditas (latin, turgidus = bulging).

The main function of the vacuole is to enter the water through tonoplas to build cell turgor. In addition, fakuola other functions are as follows:
Antosian pidmen presence, such as anthocyanins, memberiikan possibility attractive bright color in flowers, leaf and fruit.
Sometimes grown-containing vacuoles hydrolytic enzyme that can act as lysosomes when cells are still alive.
Become landfill waste products, such as calcium oxalate crystals, alkalois, tannins, and latex (sap). Specialized cells that have the duty to accommodate latex vacuoles called latisifer. Latisifer found in rubber trees, and plants his family. Storage of food substances such as sucrose, mineral salts and dissolved inulin which at times can be used by cytoplasm.

3. Plastids.

Membranous organelles plastids is complete, the form and function are manifold. These organelles found only in plant cells, in the form of beads containing pigment. Plastids are the result of the development of small bodies known proplastida that many in the area merismatik. In the process, proplastida can turn into three types, namely chloroplasts, kromoplas, and leukoplas.

a. Chloroplasts.

Chloroplasts are organelles that contain chlorophyll. Chlorophyll function during photosynthesis. Chloroplast structure consisting of outer membrane which is useful for passing molecules measuring less than 10 kilodalton without selectivity. The permeable membrane is selective and is useful for selecting molecules out by active transport, fluid chloroplast stroma is useful for storing the results of photosynthesis in the form of starch (starch); and thylakoid site of photosynthesis.

Chloroplasts found in many other organs and leaf green. Chlorophyll can be divided into different types, namely :

- Chlorophyll a: displays a green color blue
- Chlorophyll b: yellow green color display
- Chlorophyll c: display the green color brown
- Chlorophyll d: displays a green color red.

b. Kromoplas.

Kromoplas is plastids give nonfotosintesis diversity of colors, such as red pigment, orange, yellow, and others.

Pigments including kromoplas groups, among others :

- Carotene, causing yellow orange and red, for example on carrots
- Xantofil, Raises yellow color of the leaves that have old
- Fikosianin, gave the blue color of the algae
- Fikosiantin, Giving color to the brown algae
- Fikoeritrin, Giving red on algae.

c. Leukoplas.

Leukoplas is plastids colorless or white. Generally present in plant organs that are not exposed to sunlight, particularly in storage organs of food reserves. Leukoplas generally useful for storing food reserves, such as starch and proteins in the cells of cassava stem and root cells in potatoes.

Leukoplas divided into three kinds, namely:

- Amiloplas.
Namely leukoplas which serves forming and storing starch,
- Elaioplas (lipidoplas).
Namely leukoplas which serves to establish and store fat or oil,
- Proteoplas.
Namely leukoplas that hold proteins.

D. Animal Cells.

Animals have unique organelles in the cell, namely the centrioles which is absent in plant cells.

1. The centrioles.

Centrioles are a pair of cylinder-like structure that has a central hole and is composed of protein microtubules. Members pair of centrioles are usually located in an angled position to the right of each other.

Centrioles is composed of microtubules that form a protein structure like a net that looks close to the chromosomes during cell division (metosis and meiosis). Jala is called thread spindle. At the other end, the net is adjacent to the end of centrioles. Centrioles role is to regulate the polarity (polar) division of animal cells and regulate the separation of chromosomes during division.

2. Vacuole.

In some types of single-celled animals find vacuoles, for example, amoeba and paramecium.

At paramecium vacuole there are two kinds, namely :

- Contractile vacuole or the vacuole pulsed.
Typical for the single-celled animals that live in fresh water. This vacuole instrumental maintain osmotic pressure of the cytoplasm, or often referred to as a tool osmoregulato.
- Nonkontraktil vacuole or the vacuole is not pulsed.
The task of digesting food, so it is often called the food vacuole.
Thank you for reading this article. Written and posted by Bambang Sunarno. sunarnobambang86@gmail.com
author:
https://plus.google.com/105319704331231770941.
name: Bambang Sunarno.
http://primadonablog.blogspot.com/2015/09/differences-cells-animal-and-plant-cells.html
DatePublished: 12 September 2015 14:37