role/function of pancreas as endocrine gland

Role of pancreas in chemical coordination

Pancreas is considered to be both endocrine as well as exocrine gland or we can say that it has dual nature. It is considered as exocrine gland because it has a duct to secrete hormones like pancreatic juice which contains enzymes on the other hand it also act as a endocrine gland because it contain islets of langerhans.If you are confused inexocrine and endocrine gland then we can describe them in simple words likethis “exocrine glands are those which have ducts to secrete hormones while endocrine gland are ductless and release hormones directly into bloodstream”. The pancreas act as glucose level maintaining gland by the help of Islets of Langerhans functions.

Islets of Langerhans consist of three types of cells:

Alpha cells:

These found lesser in number than beta cells. These play a vital role in increasing the level of glucose in blood by secreting a hormone known as Glucagon. The hormone glucagon is responsible for stimulating liver to convert glycogen (polysaccharide) to simple sugar (glucose).Secondly these help in the catabolism of fats to glucose molecule. The overproduction of glucose can lead to diabetes mellitus if it is not stimulated by insulin.

Beta cells:

Beta cells of pancreas are having a duty to decrease glucose level in blood by secreting a major hormone that is insulin. When the glucose level rise in the blood the our portion of brain called as hypothalamus activates the beta cells by emitting a HIH (hypothalamic inhibiting hormone) on the reaction beta cells release insulin to lower the blood glucose level by stimulating liver to produce glycogen by utilizing glucose within the blood.

So if we look at the overall function of pancreas then we can say that it maintains the glucose level in the blood either by increasing or through decreasing by using two specific hormones glucagon or insulin. The acinar cells also present in pancreas which secrete the pancreatic juice and make pancreas a dual nature gland.

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The general and main Characteristics or features of organic compounds.

The general and main Characteristics or features of organic compounds.

The chemistry deals with two kinds of compounds, one is organic and other is inorganic. Usually, we say that organic compounds have carbon with hydrogen and the compounds else from organic are known as inorganic compounds. These both kinds of compounds are vital and interlinked but some features of them make them distinguishable from others. So, it is important for us to study the main features of the organic compounds because our composition is because of these compounds. Organic compounds have entirely different properties from inorganic compounds. some of the general properties of organic compounds are given or described below:

Origin of organic compounds:

These can be got or produced from living things only or we can say that there source of production is life having matter. If you take the examples of petroleum then they are formed by the fossils of dead plants and animals when it is pressed with high pressure of the soil then by taking a lot of time they will formed under the ground.

Composition:

The most essential constituent of organic compounds is the carbon and may contain other non metals with it like hydrogen, sulphur, oxygen and some other.

Combustion:

The organic compounds are highly combustible because of the high percentage of carbon in them. Due to this reason they are used as fuels for different purposes like in power generation, vehicles and in homes.

Melting and boiling point:

These generally have low melting and boiling point and they are volatile in nature. This is due to the presence of weak intermolecular forces between the molecules of organic compounds which we called as vender Waal forces.

Solubility:

These are highly soluble in non polar compounds like benzene and less soluble  in polar compounds like water and hydrochloric acid.

Stability:

Since they have low melting and boiling points, they generally decompose at high temperature into simple substances.

Electrical conductivity:

These are poor conductors of electricity in both fussed state and solution form because these contain highly stable covalent bonds and have lack of free electrons for the conduction of electric current.

Rate of reaction of organic compounds:

As we said earlier that these are more stable and less reactive so, their rates of reaction are very slow and need specific conditions.

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