Answer
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Hint: Photochemical reaction, a chemical reaction initiated by the absorption of energy in the form of light. The consequence of molecules' absorbing light is the creation of transient excited states whose chemical and physical properties differ greatly from the original molecules. These new chemical species may disintegrate, change into new structures, combine with each other or other molecules, or transfer to other molecules electrons, atoms of hydrogen, protons, or their electronic excitation energy.
Complete answer: o
The whole photosynthesis process takes place within the chloroplast. The chloroplastic composition is such that light-dependent (light reaction) and light-independent (dark reaction) reactions occur at separate locations within the same organelle.
The thylakoids have the pigments and other components required for the absorption of
Light and electron transfer to conduct a light reaction or electron transport (ETC) chain. In ETC, as light is absorbed, the PSI and PSII electrons. The electrons gain excitation energy, that is, are excited to a higher energy level.
As the electrons obtain this energy, the electron acceptor accepts them. Which, in turn, is diminished, leaving PSII and PSI reaction centres, i.e. $P_{680}$ Molecules in an oxidised state and $P_{700}$. It illustrates the transition of light energy into chemical energy. The electrons then pass downhill in terms of momentum, in a sequence of oxidation-reduction reactions from one electron acceptor to another.
This movement of electrons is 'coupled' to the ATP formation. NADP, moreover, is
Narrowed down to $NADPH_2$. The light reaction product is referred to as the power reduction or assimilatory force (ATP and $NADPH_2$) that comes into the chloroplast stroma from the thylakoid.
In the stroma, the second step called as dark reaction or biosynthetic pathway
occurs, where $CO_2$ is reduced by the reducing power generated in the first step and carbohydrates are produced.
From these discussions we can conclude that liberation of $O_2$ formation of ATP and $NADPH_2$ takes place during the photochemical reaction of photosynthesis.
So, the correct answer is “Option C”.
Note:
Any atom or molecule's absorption of electromagnetic energy often involves shifting electrons from one atomic orbital to another. Each electron has energy, and the quantity is determined by the location of the orbital electron in space and the speed at which the electron moves. As an atom consumes light energy, an electron is either lifted or accelerated in its orbit to an orbital at a higher energy level. In other situations, such discrete energy amounts are needed, since they are not absorbed because light photons have either too much or too little energy.
Complete answer: o
The whole photosynthesis process takes place within the chloroplast. The chloroplastic composition is such that light-dependent (light reaction) and light-independent (dark reaction) reactions occur at separate locations within the same organelle.
The thylakoids have the pigments and other components required for the absorption of
Light and electron transfer to conduct a light reaction or electron transport (ETC) chain. In ETC, as light is absorbed, the PSI and PSII electrons. The electrons gain excitation energy, that is, are excited to a higher energy level.
As the electrons obtain this energy, the electron acceptor accepts them. Which, in turn, is diminished, leaving PSII and PSI reaction centres, i.e. $P_{680}$ Molecules in an oxidised state and $P_{700}$. It illustrates the transition of light energy into chemical energy. The electrons then pass downhill in terms of momentum, in a sequence of oxidation-reduction reactions from one electron acceptor to another.
This movement of electrons is 'coupled' to the ATP formation. NADP, moreover, is
Narrowed down to $NADPH_2$. The light reaction product is referred to as the power reduction or assimilatory force (ATP and $NADPH_2$) that comes into the chloroplast stroma from the thylakoid.
In the stroma, the second step called as dark reaction or biosynthetic pathway
occurs, where $CO_2$ is reduced by the reducing power generated in the first step and carbohydrates are produced.
From these discussions we can conclude that liberation of $O_2$ formation of ATP and $NADPH_2$ takes place during the photochemical reaction of photosynthesis.
So, the correct answer is “Option C”.
Note:
Any atom or molecule's absorption of electromagnetic energy often involves shifting electrons from one atomic orbital to another. Each electron has energy, and the quantity is determined by the location of the orbital electron in space and the speed at which the electron moves. As an atom consumes light energy, an electron is either lifted or accelerated in its orbit to an orbital at a higher energy level. In other situations, such discrete energy amounts are needed, since they are not absorbed because light photons have either too much or too little energy.
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