Which of the following can cause an imbalance of microflora in humans?
(A) Overuse of antibiotics
(B) Excessive use of antiviral drugs
(C) Consumption of genetically modified foods
(D) Immunisation against different diseases
- HSC - SSCE Biology - Question 3 - 2013 - Paper 1
Question 3
Which of the following can cause an imbalance of microflora in humans?
(A) Overuse of antibiotics
(B) Excessive use of antiviral drugs
(C) Consumption of genetica... show full transcript
Worked Solution & Example Answer:Which of the following can cause an imbalance of microflora in humans?
(A) Overuse of antibiotics
(B) Excessive use of antiviral drugs
(C) Consumption of genetically modified foods
(D) Immunisation against different diseases
- HSC - SSCE Biology - Question 3 - 2013 - Paper 1
Step 1
A) Overuse of antibiotics
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Answer
The overuse of antibiotics can lead to an imbalance of microflora, as antibiotics can kill not only harmful bacteria but also beneficial ones. This disruption can result in a lack of diversity in the gut microbiome, potentially leading to issues like antibiotic-associated diarrhea and increased susceptibility to infections.
Step 2
B) Excessive use of antiviral drugs
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Answer
Excessive use of antiviral drugs generally targets viruses and thus has less direct impact on bacterial microflora. Therefore, it is less likely to cause an imbalance compared to antibiotics.
Step 3
C) Consumption of genetically modified foods
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Answer
Current evidence does not strongly support the idea that consuming genetically modified foods causes an imbalance in microflora. The impact on gut health is more influenced by diet diversity and food processing rather than the genetic modification itself.
Step 4
D) Immunisation against different diseases
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Answer
Immunisation does not cause an imbalance of microflora. In fact, vaccines help prevent diseases which can, in the long run, support overall health and maintain a beneficial microbial environment.
