Answer :
Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose and other sugars. The process of photosynthesis can be broken down into the following 7 steps:
Light absorption: Plants absorb light energy through pigments, such as chlorophyll, in their leaves.
Electron transport chain: The absorbed light energy is used to generate a flow of electrons through an electron transport chain, which generates ATP and NADPH.
Carbon dioxide fixation: Carbon dioxide (CO2) is taken in through small pores called stomata on the surface of the leaves.
Reduction of CO2: The ATP and NADPH produced in the electron transport chain are used to reduce CO2 to form glucose and other sugars.
Glycolysis: The glucose and other sugars produced through photosynthesis are then broken down through a process called glycolysis to produce ATP and NADH.
Krebs cycle: The ATP and NADH produced through glycolysis are used in the Krebs cycle (also known as the citric acid cycle) to produce more ATP and NADH.
ATP synthesis: The ATP and NADH produced through the Krebs cycle are used in the process of oxidative phosphorylation to synthesize ATP.
Overall, the process of photosynthesis converts light energy into chemical energy in the form of ATP and NADPH, which are used by plants to fuel various cellular processes.
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