If the input water is labeled with a radioactive isotope of oxygen, 18o, then the oxygen gas released as the reaction proceeds is also labeled with 18o. which of the following is the most likely explanation (a) during the light reactions of photosynthesis, water is split, the
hydrogen atoms combine with the co2, and oxygen gas is released.
(b) during the light reactions of photosynthesis, water is split, removing
electrons and protons, and oxygen gas is released.
(c) during the calvin cycle, water is split, regenerating nadph from
nadp+, and oxygen gas is released.
(d) during the calvin cycle, water is split, the hydrogen atoms are added
to intermediates of sugar synthesis, and oxygen gas is released.
Answers: 1
. During the Calvin cycle of the plant respiration, the water molecule splits into hydrogen and oxygen and contributes in the formation of Sugar along with release of oxygen. The oxygen molecules of 
are splits to form sugar moiety. The water splits and releases oxygen. Since the released oxygen is part of water molecule. The radio-labelled water with 
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If the input water is labeled with a radioactive isotope of oxygen, 18o, then the oxygen gas release...
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