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При the pathological processes demanding improvement of a carbohydrate exchange, is applied кокарбоксилаза which is простетической group коферментом the enzymes participating in processes of a carbohydrate exchange. The carbohydrate exchange is improved by nicotinic acid vitamin РР which is простетической group of the enzymes which are carrying out oxidation-reduction processes. Пиридоксин vitamin В6 is a part of the enzymes which are carrying out декарбоксилирование and reamination of amino acids, participates in an exchange триптофана, methionine, цистеина, глутаминовой идругих amino acids.

Цианокобаламин vitamin В12 is the factor of growth necessary for normal кроветворения and maturing эритроцитов, participates in formation холина, methionine, креатина, nucleinic acids.

This vitamin in an organism of animals is not formed, its synthesis in the nature is carried out by the microorganisms living in intestines. Lipoevaja acid is коферментом, participating in oxidising декарбоксилировании пировиноградной acids and a-ketokislot, and plays an important role in a power exchange. In regulation oxidation-reduction процесов, a carbohydrate exchange, ascorbic acid vitamin C participates in regeneration of fabrics and in formation of steroid hormones.

Эргокальциферол vitamin D2 regulates the phosphorus and female viagra works exchange, promotes всасыванию these substances intestines and to female use of viagra adjournment in growing bones. Vitamin E and the connections close to him by the chemical nature

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biological action токоферолы, participate in biosynthesis гема and fibers, are applied at muscular dystrophies.

For парентерального a food use a number of the preparations which are solutions of amino acids and elementary пептидов гидролизин, аминокровин, фибриносол, etc. Metabolic processes stimulate derivatives пиримидина and тиазолина. Orotovaja acid is one of predecessors пиримидиновых нуклеотидов, a part nucleinic acids which participate in synthesis of albuminous molecules, is applied as the general stimulator of exchange processes.

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11. Thermoregulation Ambient temperature renders a great influence on physiological activity of live organisms. In different regions of the Earth the temperature fluctuates from-50 “during the Arctic winter to 60С in the summer in some deserts.

The temperature range in which live cages are capable to function, makes nearby 50. Live cages freeze at several degrees more low 0С. Crystals of ice which are formed at freezing of fabrics, female taking viagra cellular structures. However some animals are capable to restore the ability to live after defrosting.

At temperatures above 45С occurs денатурация fibers, i. in these conditions organism functioning is impossible. The temperature is capable to influence a living tissue metabolism as speed of biochemical reactions depends on temperature.

Dependence of speed of chemical reaction on temperature is described by the equation of Arreniusa. At studying of influence of temperature for speed of reaction it is possible by comparison of this speed at two different temperatures to define temperature factor. The difference of temperatures equal 10С, became a standard range on which define temperature sensitivity of biological systems.

In this case the temperature factor designated О10. Count from the equation of Vant-Goffa. According to a rule of Vant-Goffa speed of chemical reactions increases at rise in temperature on 10С approximately in 2-3 times. In fauna there are some basic ways of reaction to external temperature. At пойкилотермных холоднокровных animals whom concern the majority беспозвоночных and the lowest позвоночных, body temperature depends on ambient temperature.

Intensity of power processes and activity level пойкилотермных organisms are defined by environment temperature fig. A picture i_028. jpg At пойкилотермиых animals body

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is close to air temperature. Гомойотермные keep body temperature at rather constant level in a wide range of temperatures of air In the course of evolution at mammals and birds ability to keep identical temperature of internal parts of a body was developed, despite its changes in environment thermoregulation that provides a relative constancy of metabolic processes and does an organism less dependent on external changes.

Such organisms are called гомойотермными warm-blooded, they are distinguished from пойкилотермиых the organisms close on weight, by much higher level of a power exchange and level of activity female viagra video independent of ambient temperature. Intensity of an exchange of energy on a mass unit of a body at гомойотермных animals even after destruction of the centres of thermoregulation at least

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3 times exceeds intensity of an exchange at пойкилотермиых at identical temperature.

As гомойотермные organisms can maintain constant temperature and consequently, constant level of activity irrespective of the surrounding temperature, they have the superiority over пойкилотермными animals. At female viagra online same time, пойкилотермия gives priority in that case when food resources are limited or subject to seasonal changes. There are animals who possess ability to pass for some time from гомойотермного conditions in пойкилотермное and on the contrary.

Such transition is observed at the animals running into hibernation marmots, gophers, sleepyheads, etc.paternal they have received the name гетеротермных. Гетеротермия is a special condition at which гомойотермные animals for a while switch off thermoregulation and the temperature of their body decreases to limits, excellent approximately on ГС from environment.

Гетеротермия is the property got in the course of evolution later, than гомойотермия, and has great value for the organism adaptation to adverse conditions for example, to a lack of food, water. Animals can be classified also on those sources of heat which they use for body temperature maintenance.

Эктотермные, for example reptiles, use for this purpose external heat; эндотермные, and in particular the person, use warmly metabolic origin. Body temperature and thermal balance Possibility of processes of ability to live is limited by a narrow limit of temperature of the internal environment in which there can be the basic ферментативные reactions.