HORTICULTURE

Detailed explanation-1: -In CAM photosynthesis, stomatal behaviour reverses; atmospheric CO2 is fixed at night and stomata are closed during the day. The initial CO2 fixation is performed by the enzyme phosphoenolpyruvate (PEP) carboxylase. CO2 is fixed into 4-carbon compounds, primarily malate, and stored in vacuoles as an acid.

Detailed explanation-2: -Crassulacean Acid Metabolism (CAM) Photosynthesis In this pathway, stomata open at night, which allows CO2 to diffuse into the leaf to be combined with PEP and form malate. This acid is then stored in large central vacuoles until daytime. During the day, malate is released from the vacuoles and decarboxylated.

Detailed explanation-3: -In the CAM pathway, plants take CO2 during the night through the stomatal opening. It is converted to malic acid (4 carbon compound) and stored in vacuoles.

Detailed explanation-4: -In order to meet their needs to combine the Sun’s energy with CO2 from the air, CAM plants take in CO2 at night and store it in the form of a four-carbon acid called “malate.” Then the malate is released during the day, where it can be combined with the ATP and NADPH created by the Sun’s energy.

Detailed explanation-5: -Cacti store the carbon dioxide they take in during the night in their cells in the form a chemical called malic acid. In CAM plants, carbon dioxide is only gathered at night, when the stomata open.