Photosynthesis, the remarkable biological phenomenon by which plants harness sunlight to produce oxygen and convert carbon dioxide into starch and sugars, is a multifaceted process that has captivated scientists for decades. In this article, we will explore the intricate journey of photosynthesis, shedding light on the two main phases, the evidence supporting them, and the factors influencing their efficiency.
Scientists have established that photosynthesis comprises two fundamental phases:
To substantiate the existence of these phases, researchers have employed several experiments and studies:
The process of water splitting in photosynthesis is referred to as photolysis, and it's commonly known as the Hill reaction in honor of its discoverer.
Dichlorophenol indophenol, a dye, was employed by Hill in his renowned Hill reaction.
As explained by Arnon in 1961, this process involves the conversion of light energy into chemical energy. This energy is stored in the form of ATP, a process referred to as photophosphorylation within chloroplasts. Additionally, the electron acceptor NADP+ is transformed into NADPH, a hydrogen donor. This conversion of NADP+ to NADPH is known as photoreduction or the generation of reducing power NADPH.
1. What are the two phases of photosynthesis? |
2. What is the supporting evidence for light and dark reactions in photosynthesis? |
3. What is the modern concept of photosynthesis? |
4. How does photosynthesis relate to the UPSC exam? |
5. What are some frequently asked questions about photosynthesis? |
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