Does the formamide in EVA foam mats pose a health risk? The French researchers tested three different brands of foam puzzle mats. The study found that any exposure to formamide came almost exclusively through inhalation. Exposure through ingestion (whether through suction, chewing, or swalling a piece) was negligible.
Chemiosmosis is one of the processes by which ATP is synthesized. In eukaryotes, it takes place in the mitochondria during cellular respiration and in the chloroplasts during photosynthesis. In prokaryotes, it occurs in the cell membrane.
The presence of chloroplasts in the leaf epidermis is common in pteridophytes (mainly in filmy ferns), aquatic plants, and some terrestrial gymnosperms and angiosperms, especially those that grow in the shade (Esau, 1965; Mickel, 1972; Dickinson, 2000).