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 »
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 »
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 »
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 »
Photosynthesis is a process where green plants and some other organisms (algae and some bacteria – such as Proteobacteria , Chloroflexi, Chlorobi and cyanobacteria ) uses trapped sunlight to convert carbon di oxide and water to produce chemical energy in the form of carbohydrates (most commonly glucose) and oxygen. In other words, photosynthesis is a process… Read More »
Cell happen to be fundamental unit of life. New cells will arise from existing cells. A cell will divide to give rise to two cells and these two cells can form four cells and so on. This is termed as “Cell reproduction” or “Cell division“. Cell division usually occur by Mitosis or Meiosis . Following… Read More »
In the previous posts we looked into eukaryotic cell division (Mitosis) and its regulation at checkpoints. Today we will discuss about another important type of cell division called as Meiosis. Introduction : Meiosis is a special kind of cell division that occur in germ cells of sexually reproducing organisms, where it reduces the chromosome number… Read More »
Cell cycle can be defined as a ordered and highly regulated sequence of events required for cell division. The cell cycle can be divided into four phase for understanding purpose (as cell cycle is a continuous ongoing process) – Gap 1 (G1), synthesis (S), Gap 2 (G2) and mitosis (M), During these phases a cell… Read More »
All the living organisms, even the enormous ones, start their journey from a single cell. The process through which cells originate from existing living cells is called as cell division. Each cell have the ability to divide into two daughters cells (In mitosis), which again can grow and divide. This after many cycles (of growth… Read More »
Our Earth exhibits a large variety of living organisms, be it different kinds of plants, insects, sea creatures or other animals. In addition to these living forms, there are many organisms which we cannot see with our naked eye but are present around us. There are an estimated 1.5 – 1.7 million named species on… Read More »