What are the requirements for photosynthesis to occur, and what is the role of atp in this reaction
1)water, oxygen and chemical energy are required, and atp is changed to adp
2) water, carbon dioxide, and electrical energy are required, and atp is produced
3) water, phosphate group, and thermal energy are required and atp is lost
4) water, carbon dioxide, and sunlight are required and atp is produced

The right answer is 1) water,oxygen and chemical energy are required, and ATP is changed to ADP

The light phases of photosynthesis thus make it possible to convert the solar energy captured by the pigments into chemical energy that is stored in the highly energetic ATP molecules and in the NADPH molecules (reducing power). The synthesis of ATP is therefore thanks to the proton-motor force and ATP synthetase.

There is production of O2 and ATP. NADP + is reduced to NADPH and H +. Thus water is the electron donor and NADP + is the ultimate acceptor. O2, released into the atmosphere, is used in cellular respiration.

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image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.