Respiration that is initiated in chloroplasts and occurs in light only is called photorespiration. Photorespiration or Glycolate Pathway: It is interesting to know that in the plants possessing Calvin cycle, the enzyme RuBP carboxylase can initiate the reversal of photosynthetic reactions. This process occurs when there is low CO2, concentration but high O2, concentration. At mid-day, when temperature and CO2 [...]
In this article we will discuss about:- 1. Photosystem II (PS II) 2. Photosystem I (PS I) 3. The Light Reaction (Hill Reaction). Photosystem II (PS II): The light-driven reaction of photosynthesis also called light reaction (Hill reaction), referred to as electron transport chain, were first propounded by Robert Hill in 1939. The electron transport chain of photosynthesis is initiated [...]
The upcoming discussion will update you about the difference between Calvin Cycle and Hatch-Slack Cycle. Difference # Calvin Cycle (C3 Cycle): 1. Calvin Cycle operates in all plants. 2. Calvin Cycle has a slower rate of CO2 fixation. 3. CO2 once fixed is not released back. 4. The primary acceptor of CO2 is RuBP, a 5-carbon compound. 5. The first [...]