Biochemistry Archives - Page 2 of 2

Versatility of carbon element and the inception of life on earth

Only about 30 elements participate in all the biological reactions out of 118 elements in the periodic table. Out of these 30 elements >99% weight of the cellular mass is formed of H, O, N and C. Only these selective elements create enormous magic and beautify the mother earth and it is possible because of the peculiar chemical properties of these elements. All the micro and macro structures of the living things are formed from the smaller molecular building blocks which require the carbon as a key element in some or the other way.

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Electron: A Big Fish In a Small Pond

When electrons are high in energy i.e. when they are at the excited state they tend to loose the energy by performing work.The transfer of energy take place in stepwise manner, at every step some amount of energy is used to carry out the work and this part of work constitute some coupled uphill chemical reactions in the biological systems like the biosynthesis of the molecules. The flow of the high energy electrons is a downhill process but on the contrary it provides energy for many uphill biochemical processes.

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Electron carry the sunlight of lives on earth

Electrons and Molecular interactions and its biological significance

Depending upon the amount of energy it has, electron revolves around the nucleus at specific regions only. Such regions are termed as electronic orbitals and each orbital has its unique energy levels. We have s, p d and and f energy orbitals with s and p being common to biological reactions. Each orbital has different shape and location around the nucleus which defines the regions within which we may find the electrons. The shape of the orbital defines the probable region of the occurrence of the electron. Within this specified region the electrons can be found anywhere at any given time.

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Why Learn Chemical Reactions?-2

The biological systems that we see around us, are kept intact and alive with the millions of chemical reactions happening during the blink of an eye. Chemical bonds like covalent bonds, ionic interactions, coordinate bonds, hydrogen bonding, Van der Waals forces, etc. together form the biological structures. Living organisms are of different forms, some are multicellular and some are unicellular.

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Why Learn Chemical Reactions?-1

In every system energy makes things happen. System is comprises of matter and thus more the energy more the instability in the matter is. Naturally, unstable objects have the tendency to give off the energy to attain the stability. This indeed forms the basis for the process of reaction. Multiple physical, chemical and nuclear reactions are the well-known examples.

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