Photo AI
A patient with tuberculosis had a persistent cough, fever and weakness - VCE - SSCE Biology - Question 6 - 2005 - Paper 1
Question 6
A patient with tuberculosis had a persistent cough, fever and weakness. The patient was treated with antibiotic X and began to improve after finishing the course of ... show full transcript
Worked Solution & Example Answer:A patient with tuberculosis had a persistent cough, fever and weakness - VCE - SSCE Biology - Question 6 - 2005 - Paper 1
Step 1
Explain the most likely reason why the course of antibiotics was not successful.
Answer
The most likely reason for the failure of the antibiotic treatment is the development of antibiotic resistance in some of the bacterial population. Although antibiotic X killed the majority of bacteria, there existed a subset that was resistant to the antibiotic. These resistant bacteria survived and multiplied after the treatment concluded, as they possessed genetic traits that allowed them to endure the antibiotic effect. Subsequently, these resistant bacteria passed on their resistant characteristics to future generations, which led to the recurrence of the symptoms.
Step 2
Describe one important reason for this extensive study.
Answer
One important reason for the extensive studies before releasing the transgenic bacteria into the environment is to ensure that the bacteria will not harm other environments. This precaution helps to protect the health of humans, animals, and plants that might interact with the transgenic organism, thus preventing unintended ecological consequences.
Step 3
What economic advantage would there be in releasing the transgenic bacteria into the environment?
Answer
An economic advantage of releasing transgenic bacteria designed to break down plastic materials is that it can significantly reduce the costs associated with plastic waste management. By accelerating the decomposition of non-biodegradable plastics, it decreases the need for landfills and helps in the recycling process, ultimately saving money for municipalities and businesses involved in waste disposal.