Spring (hydrology) and water supply network are subjects the hydrogeologist is concerned about; Water cycle, hydrosphere and water resources are larger concepts which hydrogeology is a part of; References
7.2 Photosynthesis occurs in chloroplasts in plant. cells. ï§ Chloroplasts are concentrated in the cells of the. mesophyll, the green tissue in the interior of the. leaf. ï§ Stomata are tiny pores in the leaf that allow. carbon dioxide to enter and oxygen to exit. ï§ Veins in the leaf deliver water absorbed by roots.
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.