d. Vifold p. Virus 2 Describe the key experiments of scientists who disproved sp
ID: 143025 • Letter: D
Question
d. Vifold p. Virus 2 Describe the key experiments of scientists who disproved spontaneous generation. 3. In earlier stage of the debate between spontaneous generation and biogenisis, experiments disapproving spontaneous generation were not always reproduced successfully. Why? 4. Describing how Pasteurs experiment that disproved the idea that a "vital force" in air was responsible for spontaneous generation. 5. 6. 7. Describe the scientific method, using Pasteur's swan-necked flask experiment as an example. Discussing why scientists must repeat the experiments of others. Explain the importance of microorganisms in the health of humans and the surrounding 8. 9. environment List major commercial benefits of microorganisms. Describe the role of microbes in disease, including examples of past triumphs and remaining challenges 10. Describing two microbial activities essential to life and three that make our lives more comfortable 11. What factors contribute to the emergence and re-emergence of an infectious disease? 12. Compare and contrast characteristics of members of the Bacteria, Archaea, and Eukarya. 13. Explain the features of an organism's scientific name. What is the proper format for a scientific name? 14. Compare and contrast the algac, fungl, and protozoa. 15. Compare and contrast viruses, viroids, and prions. 16. Describing the chemical composition of viruses, viroids, and prions. 17. Discussing the following scenario: A microbiologist obtained two pure biological samples: one of a virus, and the other of a viroid. Unfortunately, the labels had been lost. The microbiologist felt she could distinguish the two by analyzing for the presence or absence of a single molecule What molecule would she search for and why? 53 P11 F1o 80 F5 F6 F7 F9 F3 F4Explanation / Answer
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3) In the earlier stage of debate between spontaneous generation and biogenesis, experiments disapproving spontaneous generation were not always reproduced successfully because earlier it was believed that the maggots are produced from rotting meat but it produces on meat only when flies are allowed to lay eggs on it.
4) Swan-necked flask allowed only air to enter but not the microorganisms. Thus it does not become contaminated and disproved the idea that vital force in the air was responsible for spontaneous generation.
5) Pasteur performed an experiment with 2 flasks. One with straight neck and other is the swan-necked. Flask with straight neck allowed both air and microbes to enter and thus the flask becomes contaminated with microorganisms. The swan-necked flask allowed only air to enter but not the microorganisms thus it does not become contaminated. Therefore, Pasteur showed that even air could get entered in the flask, the broth did not produce microorganisms.
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