Passage 3
1. C
The question refers to Experiment 1. Look at the data and see that the saline level has no effect on survival percentage, but both glucose amounts did increase survival rate. Based on this information, it can be deduced that the answer must be C.
2. B
In both Figures 1 and 2, comparing the graphs reveals that saline production corresponds to higher hemoglobin. Despite this, there was no survival percentage for saline. This means that hemoblogin has a negative correlation to survival rate.
3. C
When doing experiments on animals, having a comparison is extremely important to the feasibility of the experiment. Therefore, by doing the experiment on another vertebrate in the female nude mice, cryoprotective properties can be observed across different species.
4. C
By observing both experiments, it is clear that saline had no effect on survival rate, whereas the two doses of glucose clearly increased survival rate among the species. Because of this, the study is indeed feasible since the survival rate increased with increased amounts of glucose.
5.C
By observing both tables and the saline in comparison to survival rate, saline clearly does not impact survival rate. Consequently, it must be a control variable which is used in order to have baseline data.
6. A
Since the property of being cryoprotective is induced by a high increase in glucose, glycolysis is the most practical answer as the others have no relationship to the experiment.