AP BIOLOGY

Detailed explanation-1: -In CAM plants stomata are open at night and they absorb carbon dioxide at night to reduce water loss during the daytime.

Detailed explanation-2: -CAM Photosynthesis is for Plants Adapted to Dry Environments However, there is no light at night to do photosynthesis. To solve this, CAM plants have evolved to take in CO2 at night and store it in the central vacuole in the form of an acid.

Detailed explanation-3: -Crassulacean acid metabolism (CAM) is a photosynthetic adaptation to periodic water supply, occurring in plants in arid regions (e.g., cacti) or in tropical epiphytes (e.g., orchids and bromeliads). CAM plants close their stomata during the day and take up CO2 at night, when the air temperature is lower.

Detailed explanation-4: -Plants that use crassulacean acid metabolism, also known as CAM plants, are succulents that are efficient at storing water due to the dry and arid climates they live in.

Detailed explanation-5: -CO2 is taken up at night-time and stored in the vacuole as malic acid, which is decarboxylated in the light behind closed stomata and CO2 is released for fixation by rubisco in the chloroplast. The closed stomata through the day help CAM plants to maintain water.