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.
The process of photosynthesis occurs not on the surface layers of the leaf, but rather in a middle layer called the mesophyll (Figure 6). The gas exchange of carbon dioxide and oxygen occurs through small, regulated openings called stomata. In all autotrophic eukaryotes, photosynthesis takes place inside an organelle called a chloroplast.