Even though plants carry on photosynthesis, plant cells still use their mitochondria for oxidation of pyruvate. When and where will this occur?
A. In the photosynthesis cells in the light, while photosynthesis occurs concurrently
B. In non-photosynthesizing cells only
C. In cells that are storing glucose only
D. In photosynthesizing cells in dark periods and in other tissues all the time
E. In photosynthesizing cells in the light and in other tissues in the dark
Answer: D