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Cellular content - organelles in common with animal cells


Core

An important organelle in eukaryotic cells, it consists of two membranes with a space between them and containing pores.

It has two basic functions: regulate the chemical reactions that take place within the cell, and store cell genetic information. Inside you can distinguish the nucleoli and the chromatin. During cell division, chromatin condenses into stick-shaped structures, chromosomes.

Golgi System (Golgi Complex)

It is made up of several smaller units, the dithiosomes. Each dictiosome consists of a stack of five or more flattened, double-membrane lipoprotein sacs. At the edges of the bags can be observed buds in budding process. It is related to secretion processes, including secretion of the first wall separating two dividing plant cells.

Ribosomes

Structures consisting of RNA and proteins; they may be free in the hyaloplasma or held together by an RNA strand (polysomes), in which case they join the amino acids of the cytoplasm to form protein chains.

Endoplasmic reticulum

Consisting of a system of double lipoprotein membranes. The smooth endoplasmic reticulum consists of two membranes and the rough endoplasmic reticulum has ribosomes adhered to the external side adhered to the external side.

The smooth reticulum facilitates enzymatic reactions as enzymes adhere to its membrane, synthesizes lipids (triglycerides, phospholipids and steroids), regulates osmotic pressure (storing substances in its cavity), acts in the transport of substances (communicating with the library and the cell membrane). The rough reticulum not only performs all functions of the smooth reticulum but also synthesizes proteins due to the presence of ribosomes.

Mitochondria

Organelles consisting of two membranes; the intern suffers invaginations, forming mitochondrial ridges that increase the absorption surface of substances in the mitochondrial matrix. The role of mitochondria is the release of energy to cellular work.

Peroxisomes

Bi-lipid membrane structures - contain enzymes that aid in lipid metabolism; participates in the photorespiration process by oxidizing glycerate to glycolate, which is transaminated to glycine.

Products of cellular metabolism. They may be stockpiles or products discarded by cell metabolism. Found in the cell wall and vacuoles, as well as other protoplasmic components. The best known are: starch, cellulose, protein bodies, lipids, calcium oxalate crystals (drusen, rapids, etc.), calcium carbonate crystals (cystolites) and silica (rectangular, conical structures, etc.).

Phenolic substances, resins, gums, rubber and alkaloids are also ergastic. Often the cells that contain these substances are different morphologically and physiologically from the others, being called idioblasts.