Question

identify the group belongs to end products of light reaction.A)C6H12O6+6H2O+6O2. B)ATP+NADPH+O2​

Answer 1

Answer:

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Answer 2

Answer:

The end products of light reaction are oxygen, ATP and NADPH.

Therefore, option (B) is correct.

Explanation:

Photosynthesis is the phenomenon of conversion of solar energy into chemical energy which is used by living organisms.

There are two phases of photosynthesis:-

• The first phase is light dependent process which is known as the light reaction.
• The second phase is the light independent process which is known as the dark reaction.

Light reaction:-

The light reaction includes a series of events such as light absorption, hydrolysis, formation of oxygen O₂ and formation of ATP and NADPH.

• The light reaction initiates only on supplying the light energy. The photosystem consists pigments such as chlorophyll within thylakoids.
• Plants have two photosystems :

1. Photosystem-I (PS-I): absorbs light of  wavelength 700 nm.
2. Photosystem-II (PS-II) : absorbs light of wavelength 680 nm.

The light reaction takes place in thylakoids of the chloroplast. When the light absorbs, chlorophyll-a will get excited to a higher energy level followed by a series of reactions. By using photosystems PS I and PS II, solar energy is converted into energy molecules ATP and NADPH.  Also, hydrolysis takes place and releases oxygen O₂.

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