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What is the Definition of Biochemistry? Branches & Importance


Biochemistry is the application of chemistry to the study of cellular and molecular biological processes. It originated at the beginning of the 20th century as a distinct discipline when scientists combined chemistry, physiology, and biology to investigate the chemistry of living systems.

What is the Definition of Biochemistry?

The research division concerned the biological and Physico-chemical processes and substances found inside living organisms.

Where Biochemistry is Used?

Biochemistry is used for learning about the biological processes found in cells and animals.

Biochemistry can be used for several purposes, to research the properties of biological molecules.

A biochemist, for example, can study the characteristics of keratin in the hair so that shampoos can be formulated to enhance curliness or softness.

Biochemists find biomolecular applications for this. A biochemist could, for example, be using a certain lipid as a food additive.

Alternatively, a biochemist may find a replacement for an ordinary biomolecule. Biochemists for example aid in the production of artificial sweeteners.

Branches of Biochemistry

This article lists the primary branches of Biochemistry.

Molecular Organics

It is also known as the Biochemical origin. It deals with the study of living system functions. This area of biology describes all the DNA, protein, RNA, and their synthesis interactions.

Cellular Biology

Cell Biology is concerned with the cell structure and the roles of living organisms. It is also known as Cytology. Cell biology focuses mainly on the study of eukaryotic organism cells and their signaling mechanisms, while then on prokaryotes — themes to be explored by microbiology.

Branches of Biochemistry


Metabolism is one of the most significant mechanisms found in all living organisms. What occurs as food is transformed into energy in a human body is nothing but the transformations or the sequence of events that happen. One such example of metabolism is the digestion process.


Genetics is a branch of biochemistry concerned with the study of genes, their variations, and the features of inheritance in living organisms.

Other divisions include Biochemistry of animals and plants, Biotechnology, Molecular Chemistry, Genetic Engineering, Endocrinology, Pharmaceuticals, Nutrition, Environmental, Photosynthesis, Toxicology, etc.

The Importance of Biochemistry in Medical Science

Biochemistry has been intimately linked to medicine, illuminating many aspects of human health and diseases since Eduard Buchner discovered in 1897 that a cell-free yeast extract can ferment sugar (considered the most common birth of biochemistry).

To anyone working in medicine or a field related to the metabolism, function, and growth of a healthy human body, sufficient biochemical knowledge is required.

Biochemistry has broadened the way biochemical changes influence physiological change in the body by researching the role of the body in physiology. It allows us to understand the biological processes of chemical aspects such as digestion, hormone effects, and muscle relaxation.

In pathology, physicians may use biochemical analysis to validate conclusions based on patient evidence about aberrant biochemistry in conditions of illness in the human body.

The molecular basis of all illnesses is that biochemistry helps us to understand the chemical processes under various conditions:

  • Diabetes
  • hyperammonemia, hypo- and hyperthyroidism
  • hypo- and hyperparathyroidism
  • Jaundice
  • kidney dysfunction
  • Hypercholesterolemia
  • Phenylketonuria
  • sickle cell anemia
  • dental fluorosis
  • Rickets
  • acidosis and alkalosis
  • lysosomal storage diseases
  • Atherosclerosis

Biochemists working in medicine will analyze possible therapies for diseases using knowledge gleaned from the chemical existence of pathologies.

The Importance Of Biochemistry In Medical Science

A drug’s action almost always requires a change in the biochemical processes occurring in the body. As such, the biochemical elements of the human body should be familiar to pharmacologists. Biochemical studies give important insight into medicine in pharmaceuticals:

  • Action Mode
  • Semi-life
  • Conditions for storage
  • Stoffweight
  • Possible harmful or toxic results

Biochemistry is the only discipline in which the function and role of vitamins in the body are precisely defined.

 The continuous discoveries made by my biochemists will continue to have a significant effect on the field of nutritional deficiency with millions of people taking vitamins or mineral supplements every day.

What does a Biochemist do?

Biochemists usually conduct research tasks on a day-to-day basis, oversee laboratory staff, prepare technical reports, and deliver research results to scientists and key stakeholders. They perform experiments by studying enzymes, DNA, and other molecules, using electron microscopes, lasers, and state-of-the-art laboratory instruments.

These laboratory studies cover a wide range of topics, from collecting plant and animal cell samples for genetic testing to designing innovative new drugs for the pharmaceutical industry. When complete, the results are then analyzed using advanced data modeling software in an office environment.

Working together with specialists from other scientific fields in research teams, biochemists are primarily employed in the life sciences industry (including pharmaceuticals, genetics, toxicology, food processing, and vaccine production). They are most also employed in university and government research positions.

What does the Future Hold for Biochemistry?

Biochemists involved in biochemical genetic research also seem to be increasingly in demand worldwide, especially for those with a specialization in cell biology, genetics, proteomics, developmental chemistry, organic and medicinal chemistry, biochemical methods, and research.

Scientific divisions in industry, public sector laboratories, universities, and hospitals have openings for biochemists in R&D. Although MPhil or Ph.D., is required to work as a scientist, you may be working as a research assistant in science-oriented organizations. Scientists are also recruited by Defense labs.

The Future Hold For Biochemistry
The Future Hold For Biochemistry

On completion of your MSc, you can also prefer to teach at the college or university level. Biochemists are also working in the Pharmaceutical and related industries’ sales and marketing divisions.

Another choice is Civil Services. Biochemistry courses are offered at a significant number of universities at the BSc and MSc level, while biochemistry courses are provided at some engineering colleges at the BTech and MTech level.


Of course, there isn’t just medical research to extend our understanding of the essence of life. Practical technology exists to have: to enhance clinical practice.

The molecular processes discovered through biochemical analysis help to promote this — offering research that provides more opportunities to health professionals on the ground to perform their care duties.

In reality, the medical science trajectory in the next decade rests on the discoveries made in the laboratory setting by the biochemists.

All life on Earth relies on the biochemical processes and reactions. Biochemistry is and will remain one of the most relevant fields of research by combining this basic expertise with practical methods for preserving health, studying illnesses, identifying possible therapies and improving our understanding of the nature of life on earth.


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