Textbook Question
Use the following choices to answer questions 6–8:
a. aerobic respiration
b. anaerobic respiration
c. anoxygenic photosynthesis
d. oxygenic photosynthesis
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13. Photosynthesis
Introduction to Photosynthesis
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Which of the following reactants is reduced during the process of photosynthesis?
a) Oxygen gas.
b) Photons of light.
c) Carbon Dioxide.
d) Water.
A
Oxygen gas.
B
Photons of light.
C
Carbon dioxide.
D
Water.
Verified step by step guidance1
Understand the concept of reduction in a chemical reaction: Reduction involves the gain of electrons by a molecule, atom, or ion.
Identify the main reactants in the process of photosynthesis: Carbon dioxide (CO2) and water (H2O) are the primary reactants.
Recall the overall chemical equation for photosynthesis: 6CO2 + 6H2O + light energy -> C6H12O6 + 6O2.
Analyze the role of each reactant: In photosynthesis, carbon dioxide is converted into glucose (C6H12O6), which involves the gain of electrons (reduction).
Conclude that carbon dioxide is the reactant that is reduced during photosynthesis, as it gains electrons to form glucose.
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