BIO 250L Microbiology Midterm Exam {2020}

Question 1 Correct 4.00 points out of 4.00 Flag question Question text Whose work on spontaneous generation first demonstrated the existence of a very heatresistant form of bacteria that are called endospores? Select one: a. Schwann b. Redi c. Tyndall d. Pasteur Feedback The correct answer is: Tyndall Question 2 Correct 4.00 points out of 4.00 Flag question Question text The most important aspect of agar that makes it a useful ingredient for solidifying media for bacterial culture is Select one: a. It provides an excellent nitrogen source for bacteria. b. Bacteria are unable to break it down so it stays solidified. c. It melts at 100oC and solidifies at temperatures below 50oC. d. It provides an excellent carbon and energy source for bacteria. Feedback The correct answer is: Bacteria are unable to break it down so it stays solidified.