A mutation that eliminates a plant's ability to perform photorespiration will most likely have which of the following effects on the plant?
A) Photosynthetic efficiency would be reduced at low light intensities.
B) Cells would carry on the Calvin cycle at a much slower rate.
C) There would be more cellular damage from harmful products of the light reactions of photosynthesis.
D) Less oxygen would be produced by photosynthesis.

Question

Quizplus · Accepted Answer

Photorespiration is a process that consumes oxygen and releases carbon dioxide, thereby counteracting photosynthesis. It is often considered inefficient for the plant's carbon fixation process. However, it plays a crucial role in protecting the plant from the harmful byproducts of the light reactions of photosynthesis, such as reactive oxygen species. Eliminating photorespiration would therefore likely lead to more cellular damage from these harmful products, as the plant would lose an important protective mechanism.

A Mutation That Eliminates a Plant's Ability to Perform Photorespiration