1. Suppose that another trial had been performed in Experiment 1 and that the RT for this trial had been 8sec. The H2O concentration for this trial would most likely have been closest to which of the following?
2. Did H2O decompose faster in Trial 2 or in Trial 7?
3. Consider the gas bubbles that were responsible for causing the filter paper to rise to the surface. The interior of these gas bubbles was most likely primarily occupied by which of the following substances?
4. Suppose that in each trial of Experiment 1 the volume of the H2O solution contained in the beaker in Step 2 had been 400 mL. In Trial 5, the RT would most likely have been closest to which of the following?
5. In Experiment 2, which of the following combinations of pH and H2O concentration led to the shortest RT?
6. The number of circular pieces of filter paper used in Experiment 2 was:
7. According to the results of Experiments 1 and 2, what was the range of RT values for the trials done at a neutral pH?
8. If an incubation time of 36 hr had been tested in Study 1, the average number of E. coli cells/cm2 in 10% soy broth would most likely have been:
9. Suppose a student wants to use a medium to grow E. coli that will minimize, as much as possible, the adherence of E. coli to a stainless steel surface over a 72 hr incubation period. Based on the results of Study 1, which of the 4 media tested should the student select?
10. In each trial of the studies, what was the purpose of the euchrysine solution?
11. According to the results of Studies 1 and 2, for all 4 of the incubation times tested, the average number of S. typhimurium cells/cm2 was greater than the average number of E. coli cells/cm2 for which of the media tested?
12. After the cells attached to a stainless steel chip were stained, any excess dye that remained on the chip needed to be removed prior to analyzing the cells. In the studies, which step was most likely performed to accomplish this task?
13. Which of the following statements about the effect of either 10% soy broth or skim milk on the number of S. typhimurium that adhere to a stainless steel surface is consistent with the results of Study 2?
14. In the studies, the macromolecule that was stained in the cells was composed of what type of subunit?
15. In Study 2, which of the following statements gives the most likely reason the lysimeters were installed 2 years before the studies began?
16. Which of the following statements gives the most likely reason that only the top 12cm of soil was considered in Study 1?
17. The greatest depth at which soil was collected in Study 1 was how many times as great as the greatest depth at which soil solution samples were collected in Study 2?
18. Which 2 plots should be compared to determine the effect of a forest’s age on total soil P in the absence of earthworms?
19. In Study 1, all the particles in the samples analyzed for total soil P were:
20. As the odorant concentration increased from 1 mg/L through 100 mg/L, the average change in antennal voltage:
21. Based on the figure, if adult female M. sexta are exposed to 5 mg/L of methyl salicylate, the average change in antennal voltage will most likely be:
22. For which of the following combinations of odorant and concentration was the average change in antennal voltage closest to the average change in antennal voltage for 50 mg/L of nerolidol?
23. For the M. sexta exposed to an odorant concentration of 1mg/L, what is the order of the 5 odorants, from the odorant that stimulated the least average change in antennal voltage to the odorant that stimulated the greatest average change in antennal voltage?
24. According to the passage, certain chemical compounds can stimulate a change in the electrical activity of a specific type of neuron in M. sexta. This type of neuron is found in what organ of the human body?
25. Consider a satellite that completes 1 revolution around Mars in exactly 5 hr. Based on Figure1, the altitude at which this satellite orbits is most likely closest to which of the following?
26. Consider the hypothesis “For a given central body and a given satellite mass, the greater the altitude of the orbit, the greater the orbital energy.” Which group(s) of satellites listed in Table1 could be cited as evidence in support of this hypothesis?
27. All 3 scientists made which of the following statements about H2O or HCl?
28. Scientist2’s description of an acid differs from that of Scientist3 in which of the following ways? According to Scientist 2, an acid: