If you shine light on chloroplasts and measure the rate of photosynthesis as a function of light intensity, you get a curve that reaches a plateau at a fixed rate of photosynthesis, x, as shown in Figure 14-41. Figure 14-41
Which of the following conditions will increase the value of x?

Question

If you shine light on chloroplasts and measure the rate of photosynthesis as a function of light intensity, you get a curve that reaches a plateau at a fixed rate of photosynthesis, x, as shown in Figure 14-41.  Figure 14-41
Which of the following conditions will increase the value of x?

Quizplus · Accepted Answer

Increasing the number of reaction centers will allow for more light energy to be absorbed and converted into chemical energy, thereby increasing the rate of photosynthesis. The other options (increasing chlorophyll molecules in the antenna complexes, adding a powerful oxidizing agent, or decreasing the wavelength of light used) may have some effects on the rate of photosynthesis, but they would not necessarily increase the maximum rate (x) reached on the curve.

If You Shine Light on Chloroplasts and Measure the Rate