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 energy of a proton. gradient across the thylakoid membranes is believed to be used for the. phosphorylation of ADP to ATP. Phosphorylation and reduction take. place at the boundary between the chloroplast matrix, or stroma, and the. thylakoids. In so-called C3 plants, such as spinach, and in the bundle sheath. of C4 plants, such as maize, CO2 is fixed in the chloroplast stroma.