QUESTION TEXT: Some potential anticancer drugs work by depriving…
QUESTION TYPE: Most Strongly Supported
FACTS:
- Some potential anticancer drugs work by depriving growing tumours of blood flow.
- The drugs inhibit “angiogenesis”, which is the creation of new blood vessels.
- These drugs also prevent obesity in rodents.
ANALYSIS: We’ve been told how the drugs work – they inhibit angiogenesis. This has two use cases that we’re told about – they deprive tumours (giving them an anticancer purpose) and prevent obesity in rodents.
Once we know we understand the stimulus, we should check the answer choices. In a Most Strongly Supported question, it’s hard to rephrase and you’ll typically need to look at the choices.
___________
- We don’t really know this. We just know that the drugs affect these two cells, but it doesn’t mean the cells are the most similar to each other.
- We really can’t say this. Humans are pretty different from rodents, so there would need to be a lot more evidence before we can say it would do the same thing.
- CORRECT. The drugs inhibit angiogenesis, and this has the effect of preventing obesity in rodents. That tells us that obesity in rodents probably requires angiogenesis.
- This one is way out of left field. We don’t know anything about rodents with cancer, or which rodents are likely to be obese.
- We definitely can’t reach this conclusion. We would have to make a couple leaps to get to absorption of vital nutrients (which is not mentioned in the stimulus at all), and so this is certainly not the most strongly supported.
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