A phosphorylation is a type of chemical process. In this process, a compound has a phosphate group added to it.
It's the final electron acceptor, due to its high affinity for electrons.
Glucose is oxidized in them. Released energy is stored in ATP
Primary productivity can be limited by water availability in terrestrial ecosystems, as water is needed for photosynthesis to occur. In aquatic ecosystems, primary productivity can also be limited by water availability, as light penetration can be reduced in murky waters, limiting the amount of photosynthesis that can take place. Additionally, drought conditions can directly reduce primary productivity in both terrestrial and aquatic ecosystems.