Question 3 In photosynthesis, oxygen is produced when water is split and electrons and hydrogens are attached to carbon dioxide through redox reactions. Which colors (wavelengths) of light show increased "action" of oxygen production through redox processes? (1 point) Responses Blue light only Blue light only Green light only Green light only Blue and red light Blue and red light Yellow and green light Yellow and green light Question 6 Question 4 Using the production of oxygen from redox reactions in photosynthesis as a measure, why did the experimenter most likely choose aerobic bacteria to show him which colors (wavelengths) of like are most productive? (1 point) Responses Aerobic bacteria consumed the alga in the experiment. Aerobic bacteria consumed the alga in the experiment. Aerobic bacteria avoid oxygen sources. Aerobic bacteria avoid oxygen sources. Aerobic bacteria grow and reproduce where there is the most abundant source of oxygen. Aerobic bacteria grow and reproduce where there is the most abundant source of oxygen. Aerobic bacteria die in the presence of oxygen. Aerobic bacteria die in the presence of oxygen. Question 7 Question 5 Which statement best supports the correlation between frames b and c giving the experimenter the data that revealed which colors (wavelengths) of light best catalyze redox reactions in plant photosynthesis? (1 point) Responses Aerobic bacteria collected where there was the most green light illustrating how photosynthesis works. Aerobic bacteria collected where there was the most green light illustrating how photosynthesis works. Aerobic bacteria produced the oxygen needed by the alga for photosynthesis. Aerobic bacteria produced the oxygen needed by the alga for photosynthesis. Aerobic bacteria congregated (gathered) along the alga where the most oxygen was produced connecting the action spectrum to the growth of bacteria AND the rate of redox.

1 answer

Let's break down the questions and provide the best responses:

Question 3: Which colors (wavelengths) of light show increased "action" of oxygen production through redox processes?

  • Response: Blue and red light

These wavelengths are typically associated with higher rates of photosynthesis because chlorophyll, the pigment used by plants, absorbs blue and red light most effectively.


Question 4: Using the production of oxygen from redox reactions in photosynthesis as a measure, why did the experimenter most likely choose aerobic bacteria to show him which colors (wavelengths) of light are most productive?

  • Response: Aerobic bacteria grow and reproduce where there is the most abundant source of oxygen.

Aerobic bacteria require oxygen to survive and thrive, so they would be found where oxygen production from photosynthesis is highest, allowing the experimenter to measure productivity based on bacterial growth.


Question 5: Which statement best supports the correlation between frames b and c giving the experimenter the data that revealed which colors (wavelengths) of light best catalyze redox reactions in plant photosynthesis?

  • Response: Aerobic bacteria congregated (gathered) along the alga where the most oxygen was produced connecting the action spectrum to the growth of bacteria AND the rate of redox.

This response emphasizes the relationship between oxygen production and the presence of aerobic bacteria, which is critical for understanding the effectiveness of different light wavelengths in driving photosynthesis.


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