On hot days, plants often close their stomata to conserve water, which restricts carbon dioxide intake. This can lead to a process called photorespiration, where the enzyme RuBisCO mistakenly binds to oxygen instead of carbon dioxide. As a result, instead of efficiently producing glucose during photosynthesis, the plant expends energy and resources on a less productive pathway. This energy waste can hinder growth and overall plant efficiency in photosynthesis.
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