Breath. Formation of building blocks

you are: Breath

Irrespective of the fact how there is a splitting of carbohydrates - a way glikoliza or on pentozofosfatnomu ways, - intermediate products of this splitting with different number of carbon units are often used even before full oxidation of a substratum, i.e. Before its transformation in СО2 and Н2O (fig. 5.10). For lack of oxygen pirovinogradnaja acid can be restored in dairy acid or through atsetaldegid - in ethanol.

Krebsa Formed in a cycle organic acids can attach ammonia by direct amination or reamination and to turn to amino acids, and then finally to join in fiber (fig. 5.10 see). From amino acids phenols, flavonoidy, antotsiany turn out also, lignin and all other connections, which way of formation begins

With dezaminirovanija amino acids fenilalanina. Various alkaloidy and a vegetative hormone auksin (indolil-3-acetic acid) are synthesised from amino acid triptofana. acetyl-soa formed from piruvata, serves as the important initial product for synthesis of many connections, such, as the fat acids which are a part lipidov (see more low); polymers izoprena (С5Н8), for example rubber; flying terpeny; steroids; and, at last, some hormones - gibberellin, abstsizovaja acid and a hormone part tsitokinina. In gl. 15 we will consider also some other izoprenoidnye connections.

So, two main functions of breath is a liberation of the energy used in processes of a metabolism, and formation of building blocks from which in a cage many other connections are synthesised. These functions of breath are illustrated by fig. 5.11.