C) produce additional ER. D) undergo cell division. E) produce replacement lysosomes. 20) Rough endoplasmic reticulum A) contains ribosomes for protein synthesis. B) creates an enormous surface area for cell metabolism C) contains a compartment to transfer and modify products of metabolism D) all of the above 21) The function of mitochondria is
True or False: Liquid oxygen should have a larger surface tension than liquid bromine (assuming T and P are the same for both liquids). False: Surface tension of liquids increase as Intermolecular Force strength increases. Both O2 and Br2 are non-polar molecules, and have only dispersion forces. Those dispersion forces are stronger for Br2, however, since it has many more electrons (70 vs. 16) than does O2.
As oxygen is known to have healing capabilities, it is said that H2O2 cleans the wound. The heavy foam and bubble formation is due to the formation of oxygen. The same thing can be seen even when we put H2O2 on a cut potato. There are other examples of bubbling hydrogen peroxide. On a rough surface it bubbles heavily, and on smooth surfaces it remains still. When earrings are put into a hydrogen peroxide liquid, it bubbles for some time and then stops.