Question

Which of the following results is expected in an experiment studying the relationship between incoming light wavelengths and photosynthesis using a species of green algae labeled with 14C and 18O?

A) More 14C is found in the algae when it is illuminated by green light than when it is illuminated by blue-violet and red light.
B) More 18O is found in the algae when it is illuminated by green light than when it is illuminated by blue-violet and red light.
C) More 14C is found in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light.
D) More 18O is found in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light.

Answer 1

The correct answer is C) More 14C is found in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light, reflecting the absorptive properties of chlorophyll during photosynthesis.

Step-by-step explanation:

In an experiment studying the relationship between incoming light wavelengths and photosynthesis using a species of green algae labeled with 14C and 180 , the expected result is more 14C in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light. This expectation is based on the knowledge that chlorophyll, the pigment involved in photosynthesis, absorbs blue-violet and red light much more efficiently than green light, which it actually reflects. Therefore, option C) More 14C is found in the algae when it is illuminated by blue -violet and red light than when it is illuminated by green light is the correct predicted outcome of this experiment.