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.
Surface tension is a property that allows the surfaceof a liquid to behave somewhat as a trampoline does. When a person stands on atrampoline, the trampoline stretches downward a bit and, in so doing, exerts an upwardelastic force on the person. This upward force balances the personâs weight.herefore, the weight of the heaviest needlethat can be used in this demonstration isWL== Â°=Ã2 2 0073 0032 0 4 7 10 Î³cos. . cos .Î¸ N/m m N â3 Figure 4 A needle can float on a water surface, because the surface tension of the watercan lead to forces strong enough to support the needleâs weight.