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Lab Quiz 7

Lab Quiz 7

Q 1. The enzymes that deal with toxic oxygen-containing molecules is/are

Q 2. If you are doing the "shake tube" experiment to check oxygen requirement of bacterial culture where would you see the growth of "obligate anaerobic" bacteria in the culture-medium tube?

Q 3. Which of the tubes in the picture above may have bacteria that could be killed with exposure to oxygen?

Q 4. High concentrations of salt and sugar in foods

Q 5. Mycobacterium leprae is typically found infecting the ears, toes, and fingers of its host due to its

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1. superoxide dismutase AND catalase 2. at the bottom of the tube 3. 2 only 4. are useful in preserving the food AND tend to draw water out of a cell.