PHOTOSYNTHESIS
LIGHT DEPENDENT REACTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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chlorophyll a
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carotene
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xanthophyll
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reaction centre
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Detailed explanation-1: -The reaction centre contains pigments such as chlorophyll and phaeophytin.
Detailed explanation-2: -Both photosystems contain many pigments that help collect light energy, as well as a special pair of chlorophyll molecules found at the core (reaction center) of the photosystem. The special pair of photosystem I is called P700, while the special pair of photosystem II is called P680.
Detailed explanation-3: -Photosystem II has a quinone type reaction centre (also known as Q-Type or type II), while photosystem I has an iron-sulphur (FeS) type reaction centre (or type I). Both families of RC are present in membranes of oxygenic photosynthetic organism.
Detailed explanation-4: -Out of this, chlorophyll a is the major pigment involved in photosynthesis and it forms the reaction centre.
Detailed explanation-5: -Photosystem II includes the following pigments: Chlorophyll b, Chlorophyll-a 660, Chlorophyll-a 670, Chlorophyll-a 680 or P680, Chlorophyll-a 695, Chlorophyll-a 700 or P700, Phycobilins, Xanthophylls.