It represents the type of cell structures found in cam plants

Need more information to answer this question. 

However, an example of a cam plant is a cactus. They have CO2 -carbon dioxide- to produce acids. It stores the CO2 at night so it can be used during the day because cam plants are in extreme hot conditions. They release it during the day and it's formed in the Calvin cycle during photosynthesis to make glucose. 

I’m not really sure