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Type: Multiple-Choice
Category: Making Inferences and Drawing Conclusions
Level: Grade 12
Standards: CCRA.R.3, RI.11-12.3
Score: 2
Author: Tamra_Orr
Last Modified: 9 years ago

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Making Inferences and Drawing Conclusions Question

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It is not often that you hear tattoos and teeth combined into the same discussion, but according to a Princeton University researcher, the two may make the perfect combination to help ensure a person's continued good health!
Although most tattoos are made out of ink, this one is actually a wireless sensor made out of a very thin and sticky layer of carbon. Another layer of peptides, or chain of amino acids, is added to the carbon, and these are known for their ability to attract harmful bacteria. When this specialized tattoo is placed on a tooth, any dangerous bacteria will gravitate to the sensor and become stuck there. Once the sensor registers the presence of bacteria, a warning is sent out to the designated physician that a potential health problem is developing and needs immediate attention. Best of all, unlike traditional tattoos, application of this bacteria-sensing tool is absolutely painless.
Currently, the tooth tattoo is just an idea rather than a reality. Researchers are trying to figure out how to reduce the sensors so that they are small enough to place on a human tooth. They also hope to find ways to apply the sensor to other objects such as shower curtains or hospital IV tubes in the hopes of detecting the presence of bacteria.

Grade 12 Making Inferences and Drawing Conclusions CCSS: CCRA.R.3, RI.11-12.3

Based on the information in this passage, what is the primary function of the peptides in this sensor?
  1. The peptides create the shape of the sensor on the tooth.
  2. The peptides are very sticky so they hold onto the bacteria.
  3. The peptides send the message back to the person's physician.
  4. The peptides attract the various types of harmful bacteria to them.