I am a motile unicell that lives in pond water. My body is covered with cilia and I can swim very fast. I eat bacteria by endocytosis.

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.

Fredrick griffith made a scientific discovery in 1928

What is the role of dna ligase in the elongation of the lagging strand during dna replication?