If you work with a Windows-based scripting language, such as VBScript or KiXtart, you're accustomed to variables being nothing more than a sort of storage mechanism for data. Windows PowerShell has variables, too, but they're much more powerful than the variables in older scripting languages. The Windows.
Chlorophyll is a complex molecule. Several modifications of chlorophyll occur among plants and other photosynthetic organisms. All photosynthetic organisms (plants, certain protistans, prochlorobacteria, and cyanobacteria) have chlorophyll a. Accessory pigments absorb energy that chlorophyll a does not absorb.
Photosynthesis occurs in organelles called CHLOROPLASTS. More specifically, half of the photosynthesis chemistry stuff occurs in a liquid inside the chloropasts called STROMA, & the other half of photosynthesis occurs in stacks of membranes inside the chloroplast called GRANA. Turns out there are 2 types of chlorophyll, chlorophyll a & chlorophyll b.