Alok322
Meat from chickens contaminated with salmonella bacteria can cause serious food poisoning. Capsaicin, the chemical that gives chili peppers their hot flavor, has antibacterial properties. Chickens do not have taste receptors for capsaicin and will readily eat feed laced with capsaicin. When chickens were fed such feed and then exposed to salmonella bacteria, relatively few of them became contaminated with salmonella.
In deciding whether the feed would be useful in raising salmonella-free chicken for retail sale, it would be most helpful to determine which of the following?
(A) Whether feeding capsaicin to chickens affects the taste of their meat
(B) Whether eating capsaicin reduces the risk of salmonella poisoning for humans
(C) Whether chicken is more prone to salmonella contamination than other kinds of meat
(D) Whether appropriate cooking of chicken contaminated with salmonella can always prevent food poisoning
(E) Whether capsaicin can be obtained only from chili peppers
Passage Analysis Meat from chickens contaminated with salmonella bacteria can cause serious food poisoning.Salmonella bacteria can cause serious food poisoning. So, when meat from chickens contaminated with these bacteria is consumed, it can lead to serious food poisoning.
Capsaicin, the chemical that gives chili peppers their hot flavor, has antibacterial properties.Chili peppers which have a hot flavor owe it capsaicin, a chemical that has antibacterial properties.
Chickens do not have taste receptors for capsaicin and will readily eat feed laced with capsaicin.Chickens do not have the taste receptors that would help them feel the hot flavor of capsaicin. They readily eat feed that is mixed with capsaicin.
When chickens were fed such feed and then exposed to salmonella bacteria, relatively few of them became contaminated with salmonella.It was found that when chickens were given capsaicin mixed feed, comparatively very few of them showed salmonella contamination.
(Now the passage itself does not reveal the conclusion. For that we need to analyze the question stem.)
question stem analysisIn deciding whether the feed would be useful in raising salmonella-free chicken for retail sale, it would be most helpful to determine which of the following?Which of the options would be most helpful in deciding that if feed mixed with capsaicin is given to the chicken, it will be useful in raising salmonella-free chicken for retail sale.
Therefore:
Conclusion:If feed mixed with capsaicin is given to the chicken, it will be useful in raising salmonella-free chicken for retail sale.
pre-thinking Falsification questionIn what scenario will capsaicin laced feed not be useful in raising salmonella-free chicken for retail sale?
Given that →Meat from chickens contaminated with salmonella bacteria can cause serious food poisoning
→capsaicin, a chemical that has antibacterial properties.
→Chickens do not have taste receptors for capsaicin and will readily eat feed laced with capsaicin.
→when chickens were given capsaicin mixed feed, comparatively very few of them showed salmonella contamination
Thought ProcessRaising chicken for retail sale means selling them for consumption purpose. Obviously, salmonella infected chicken would be a retail failure as it could lead to serious food poisoning. It has been observed that mixing their feed with capsaicin, which has antibacterial properties, has led to a huge reduction in salmonella infection in chicken. And it is believed that this could be useful when raising chicken for retail sale.
Falsification condition#1What if the chicken meat is rendered inedible when the chicken is raised on feed laced with capsaicin?
Say the capsaicin laced feed is successful in eliminating salmonella. But this process somehow changes the meat taste, makes it tasteless or bitter or acidic, etc. Then we won’t have buyers for such meat. The goal is to raise Salmonella free chicken for retail sale. Hence, any changes that make the chicken unfit for the same could falsify the conclusion.
Assumption#1The feed laced with capsaicin in no way distracts from the taste of chicken meat or in other words does not cause any adverse changes in the taste of the chicken meat.
Falsification Condition #2What if most Chickens are infected with Salmonella bacteria relatively early on in their life cycle, before they start eating food that is laced with bacteria?
In that case, giving capsaicin laced feed to the chicken will not work on the already salmonella laced chicken. And our plans of raising salmonella free chicken for retail sail will go up into thin air.
Assumption #2
The chicken which are to be fed with the capsaicin laced feed are not already infected with salmonella.
Answer ChoicesOption AThis is absolutely in line with our pre-thinking assumption#1. We really do not need to put this through the variance test because we can clearly see that if it does affect the taste then no one will buy the chicken and retail sale of such chickens will be out of question.
Option BThis is irrelevant to our discussion. We are only concerned with the effect of capsaicin laced feed on chicken and whether they are able to resist salmonella contamination thereafter.
Hence, this is not the correct choice.
Option C Once again, the findings of this question would not help us in proving the effectiveness of the idea of raising capsaicin fed chicken for retail sale.
Hence, this is not the correct choice.
Option DThis comes into play after the chicken already contaminated with salmonella is sold. We are looking at a picture where we will sell salmonella free chicken and people will buy it. This in fact rules out the necessity of raising salmonella free chicken.
Hence, this choice is incorrect.
Option EWe need capsaicin. Does it matter from where? No. As long as capsaicin helps in raising salmonella free chicken for retail sale, it is enough.
Hence, incorrect choice.