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06/09/2020 8:38 pm
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Through the use of oxygen-18 (heavy oxygen), scientists have found that the oxygen released during photosynthesis comes from molecules of
(a) carbon dioxide
(b) water
(c) glucose
(d) chlorophyll
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06/09/2020 8:42 pm
(b) water
Explanation:
Oxygen which is liberated during photosynthesis comes form water. In photosynthesis, the light energy is captured by chlorophyll in the chloroplasts in plant leaves. This energy is used to split water apart in a process called photolysis.
4H2O ⇌ 4H+ + 4OH-