Photosynthesis cellular respiration

Cellular Respiration Activity. Purpose: We can measure cellular respiration utilizing an indicator known as Bromothymol blue (BTB). When CO. 2. is bubbled through water, carbonic acid is formed. CO. 2 + H. 2. O . H. 2. CO. 3. BTB changes color toward yellow in the presence of an acid. The more yellow the BTB is, the more carbon dioxide is ... ................
................