Biomolecule synthesis. Haixu Tang School of Informatics. Each cell can be viewed as a tiny chemical factory . Cell Metabolism Is Organized by Enzymes. substrate. product. Catabolic and anabolic pathways . The 2nd law of thermodynamics.
School of Informatics
A cell obtains energy from sugars or other organic molecules by allowing their carbon and hydrogen atoms to combine with oxygen to produce CO2 and H2O, respectively.
Average distance: proportional to the square root of the time involved.
1 second 1 mm, it takes 4 seconds to travel 2 mm, 100 seconds to travel 10 mm, etc.
Diffusion is an efficient way for small molecules to move the limited distances in the cell (a typical animal cell is 15 mm in diameter).
DG0: standard free-energy change