You are studying mutant algal cells that lack carotenoids. You raise them in an aerobic environment. They do not survive. Why? A)They cannot absorb any light. B)They reflect all colors of light. C)They dissipate aerobic environments. D)They transfer excess energy to O₂ making ultrareactive singlet oxygen that can destroy biological molecules and cause cell death. E)The lack of carotenoids causes the chloroplast membranes to disintegrate.

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Quizplus · Accepted Answer

Carotenoids play a crucial role in protecting cells from excess energy and producing reactive oxygen species (ROS) that can damage biological molecules. Without carotenoids, excess energy is transferred to other molecules, including O₂, which can cause cell death.

You Are Studying Mutant Algal Cells That Lack Carotenoids