In the Smith fermentation tube setup:?

Question

a cotton plug was placed in the tapered opening. What for? (when it is given already that the yeast suspension inside the smith fermentation setup respires anaerobically at the closed end, and aerobically at the other end where the cotton plug was placed)

What then is the purpose of the cotton plug?????

Answer 1

sterile cotton allows air to pass through while keeping other microbes out to prevent contamination

Answer 2

As usual, a lot of people seem to be missing the points you've made. Point one: Billy Graham is doing exactly what the fundies jumped all over Terri Schiavo's husband for doing, but they seem to be ignoring what Billy's doing. That's the hypocracy. Point Two: I think that burying dead bodies is ridiculous, yet those who don't feel that way seem to have no problem with Billy's wife's being denied her wishes (even I wouldn't do that). If you know that someone's wishes on such a subject have been the same for years, you don't suddenly have them sign a paper to change them at a time when they may be incompetent. That's simply taking advantage of the situation. Hypocracy. The problem with some fundies is that they never see anything they don't want to see. By the way, Terri Schiavo was not in a coma. Her brain had turned to mush -- she no longer existed. Machines were keeping the body alive, but no one was in there.