ATP is the “currency” of molecular energy in biological systems. All energy created by cellular respiration by living organisms need to end up as ATP to be used to power it. ATP is basically a Ribose sugar bonded to the nucleotide Adenine and three phosphate groups. When a living organism needs energy, it hydrolysis to break ATP into ADP(Adenosine Diphosphate) and an inorganic phosphate, which releases energy.
NADPH is the reduces from of NADP (Nicotinamide Adenine Dinucleotide Phosphate) which is a hydrogen carrier molecule. While the light dependent reactions are taking place energised electrons excited by photon energy from the sun (On Photosystem 2) jumps on to electron carriers and eventually gets to Photosystem one. Here it gets re-energised and passed through NADP+ Reductase which allows it to reduce NADP to NADPH. During the Calvin cycle a.k.a. the Light Independent reactions of Photosynthesis, after RuBisCo has carboxylated Ribulose 1,5-Bisphosphate, the whole thing becomes very unstable, so it splits in two to form to molecules of 3-Phosphoglycerate. Now, this thing needs to get reduced. For this we need energy and so ATP comes over and Slams a phosphate group onto 3-Phosphoglycerate and NADPH puts some electrons onto it to create the ultimate product of Photosynthesis:- Glyceraldehyde 3-Phosphate.
Explanation:
The light-dependent reactions of photosynthesis (left) convert light energy into chemical energy, forming ATP and NADPH. These products are used by the light-independent reactions to fix CO2, producing organic carbon molecules.
Answers & Comments
Answer:
ATP is the “currency” of molecular energy in biological systems. All energy created by cellular respiration by living organisms need to end up as ATP to be used to power it. ATP is basically a Ribose sugar bonded to the nucleotide Adenine and three phosphate groups. When a living organism needs energy, it hydrolysis to break ATP into ADP(Adenosine Diphosphate) and an inorganic phosphate, which releases energy.
NADPH is the reduces from of NADP (Nicotinamide Adenine Dinucleotide Phosphate) which is a hydrogen carrier molecule. While the light dependent reactions are taking place energised electrons excited by photon energy from the sun (On Photosystem 2) jumps on to electron carriers and eventually gets to Photosystem one. Here it gets re-energised and passed through NADP+ Reductase which allows it to reduce NADP to NADPH. During the Calvin cycle a.k.a. the Light Independent reactions of Photosynthesis, after RuBisCo has carboxylated Ribulose 1,5-Bisphosphate, the whole thing becomes very unstable, so it splits in two to form to molecules of 3-Phosphoglycerate. Now, this thing needs to get reduced. For this we need energy and so ATP comes over and Slams a phosphate group onto 3-Phosphoglycerate and NADPH puts some electrons onto it to create the ultimate product of Photosynthesis:- Glyceraldehyde 3-Phosphate.
Explanation:
The light-dependent reactions of photosynthesis (left) convert light energy into chemical energy, forming ATP and NADPH. These products are used by the light-independent reactions to fix CO2, producing organic carbon molecules.