the Cage of a green plant. Lizosomy, peroksisomy, glioksisomy

you are: the Cage of a green plant

In many cages including in cages of some higher plants, the small, spherical little bodies surrounded with a membrane in which there are those either other enzymes or groups of enzymes contain. number of these little bodies, their distribution and a set of enzymes peculiar to them rather strongly vary depending on conditions in which there is a cage. In lizosomah enzymes, katalizirujushchie liticheskie processes (disintegration processes) usually contain; proteazy destroy fibers, nukleazy katalizirujut disintegration of DNA and RNK, and lipazy carry out splitting of fats. Until then while lizosomy remain intaktnymi, these enzymes cannot contact with cellular contents; however any damage of the cage, capable to cause rupture lizosom, releases enzymes. As a result of it in a cage some biochemical reactions sometimes harmful to it, and sometimes and useful as they can to serve, for example, as means of struggle with patogenami, such, as viruses, bacteria or mushrooms begin.

In peroksisomah and glioksisomah there are enzymes, katalizirujushchie biochemical reactions which usually are not considered as the main things in a cellular metabolism but which can be important for a cage under certain conditions. Peroksisomy contain the fermental systems participating in obrazovanna and consumption of peroxide, and also enzymes, katalizirujushchie? Oxidation of the two-carbon acids formed at photosynthesis (in the course of photobreath) and some other reactions discussed more low. The physiological role peroksisom is not quite clear yet. in glioksisomah enzymes of glioksilat th cycle (gl contain. 5) - sequences of the reactions connected with splitting of fats.