Question

____ plants only uptake co2 at night because they close their ___ during the day.

Answer 1

Cacti and succulents, like the jade plant, use a carbon fixation pathway called CAM. They close their stomata during the day to conserve water and open them at night to collect and fix CO2.

Step-by-step explanation:

Cacti and succulents such as the jade plant use a carbon fixation pathway called Crassulacean Acid Metabolism (CAM). These plants close their stomata during the day to conserve water and open them at night to collect and fix CO2.

The CO2 is then stored as organic acid and converted into carbohydrates during the day using the energy obtained from light reactions. This adaptation helps these plants survive in arid environments with limited water.