The ph of lemmon is about 2.0,the tomate juice is 4.0 approximately how much of a increase in hydrogen ion concentration is there between to mate juice and lemmon juice

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.

What are the pros and cons of transect sampling?

Do plant cells perform cellular respiration?