Cellular Respiration – Part I

By | October 14, 2021

Earth came into existence some 4.5 billions year ago and based on the fossil evidence from ancient rocks of Greenland, the life on earth dates to 3.7 billion years ago.  The organisms that existed for the first two billions years, after the origin of life, were all anaerobic organisms. These organisms managed to survive and… Read More »

What is Anoxygenic Photosynthesis

By | October 13, 2021

Photosynthesis is a process, where organisms use inorganic molecules such as carbon di oxide and convert it into carbohydrates (food) using sunlight. In this manner organisms capable of performing photosynthesis can generate energy that helps their growth. Different organisms perform Photosynthesis : Green sulfur bacteria, Acidobacteria, Cyanobacteria, Algae , Plants etc. Depending on the products… Read More »

Photolysis of water

By | October 12, 2021

Plants and some other organisms like Algae and Cyanobacteria are involved in a process of Photosynthesis, which is a multi step process involving many reactions. In Photosynthesis, inorganic substances such as Carbon di oxide, water are used and convert them to organic molecules ( carbohydrates / food) and release oxygen in presence of sunlight. During… Read More »

Photorespiration, C4 Pathway and CAM metabolism pathway – Photosynthesis in plants (Part V)

By | September 23, 2021

Evolution (cumulative changes in a population or species through time), is crucial for survival and flourishing of all species or populations. According to endosymbiosis theory, all the eukaryotic life which we see today had evolved from the Archaea bacteria. Evolution has also played an important part in process of photosynthesis- from bacteria to plants. Photosynthesis… Read More »

Difference between Light and dark Reactions – Photosynthesis in Plants Part – IV

By | September 21, 2021

Light and Dark reactions ( Calvin cycle / C3 Cycle) are sequential reactions which occur during Photosynthesis process. In this post we will look into some important differences between these two vital aspects which are essential for synthesis of food in Plants and some other organisms. Difference Light Reaction Dark or Calvin Cycle Place of… Read More »

Calvin Cycle – Photosynthesis in Plants (PART -III)

By | September 21, 2021

The term Photosynthesis was first proposed by Prof. Conway MacMillan , when he was working at University of Minnesota in 1893. In the earlier blog posts we discussed about Introduction to Photosynthesis in green Plants and details of Light Reaction. As we have seen in previous posts, Photosynthesis can be divided into two different parts… Read More »

Light Reaction – Photosynthesis in Plants (PART II)

By | September 19, 2021

Photosynthesis can be divided into two parts : Light dependent reactions or Light Reactions and Dark Reactions or Calvin Cycle. Light reactions forms the “Photo” part of Photosynthesis and Dark reactions / Calvin Cycle is a separate process which accounts for “synthesis” aspect in Photosynthesis, where sugars are produced. Light reaction involves the following events… Read More »