An overview
Life is an organized forms of various bio-molecules. Chemically life is set of bio-molecules.
Scientifically life is understand very well at molecular level . All of the creatures present on the earth from
unicellular to multi-cellular undergoes biochemical reactions. These
biochemical reactions also referred to as metabolic process ,play a key
important role in life. Life present in single cell to multi- cellular bio-molecules
such as proteins , carbohydrates , nucleic acids , lipids and polypeptides are structurally
and functionally interconnected to each other . Integration of these bio-molecules
performing different biologically functions. All of the Bio-molecules within
alive cell functionally dependent and regulated to each other. Most of the
biological events occurs due to the periodically activation and suppression of
bio-molecules . In a single cell about thousands of metabolic process occurs to
stabilize the life. In any individual cell all metabolic reactions are
controlled at molecular level. In the
cell, bio-molecule performs two key important roles such as functional role and
structural role. Various biological events such as cell division, bio-signaling
, gene expression, respiration, photosynthesis , cell defence mechanism
,biosynthesis (synthesis of new bio-molecule from previous bio-molecule) and
programme cell death occurs due to the integration of the various bio-molecules.
With the help
of the central dogma of molecular biology easy to understand molecular logic of
life. By the transcription process RNA transcribed from DNA and mRNA translated into polypeptides (proteins
/enzymes) . That is ATP consuming biological events in all ordinary cell. All of the biochemical reactions
in central dogma are in step by step or in sequences. Cell have to capacity
recognition of errors during central dogma process. In multi-cellular organisms
integration of bio-molecule is in complex fashion. Usually the cellular functions concerned with gene
expression and gene regulation. Most of the cellular function ,protein play a
key regulatory role. Protein associated with sugar , lipids or nucleic
acids(DNA & RNA ) that concerned
with specific function.
Our cell works like as a biological clock . All of the
cellular pathways, cycles or biological
events in an organism at particular time /definite time. Changes in organism in
environment controlled by biochemical reaction . Many of the external factors affects our body environment and leads to disequilibrium
but our body recognize the signal and regulate
the body environment by various
biochemical reactions.
Life is nothing
without biochemical reaction. Most of the bio-molecules in unicellular to multi-cellular organisms always in dynamic condition . Some
of the in active condition and some of the in inactive condition. Various of
the bio-molecules are regulated either by directly or reciprocally.
Conclusion – All of the above explained facts about bio-molecules.
Life is the set of different kinds of bio-molecules and biochemical reactions
among them . Existence of life without bio-molecule is not possible.
Author - SIMPAL
KUMAR SUMAN
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