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What role does water play in the light reactions of photosynthesis?
What role does water play in the light reactions of photosynthesis?
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What role does water play in the light reactions of photosynthesis?
Source of carbon
Source of electrons
Source of ATP
Source of glucose
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Water acts as a source of electrons in the light reactions, which are used to replace those lost by chlorophyll.
Questions & Step-by-step Solutions
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Q: What role does water play in the light reactions of photosynthesis?
Solution:
Water acts as a source of electrons in the light reactions, which are used to replace those lost by chlorophyll.
Steps: 7
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Step 1: Understand that photosynthesis happens in two main stages: light reactions and dark reactions.
Step 2: Know that light reactions occur in the thylakoid membranes of chloroplasts when sunlight is absorbed.
Step 3: Learn that chlorophyll, the green pigment in plants, absorbs sunlight during these reactions.
Step 4: Realize that when chlorophyll absorbs sunlight, it gets excited and loses electrons.
Step 5: Understand that water (H2O) is split into oxygen (O2), protons (H+), and electrons (e-) during the light reactions.
Step 6: Know that the electrons from water replace the lost electrons in chlorophyll, allowing the process to continue.
Step 7: Remember that the oxygen produced from splitting water is released into the atmosphere.
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