Figure 2 shows the number of people diagnosed with sexually transmitted infections (STIs) in the UK during 2017 - Edexcel - GCSE Biology - Question 3 - 2022 - Paper 1
Question 3
Figure 2 shows the number of people diagnosed with sexually transmitted infections (STIs) in the UK during 2017.
sexually transmitted infection (STI) number o... show full transcript
Worked Solution & Example Answer:Figure 2 shows the number of people diagnosed with sexually transmitted infections (STIs) in the UK during 2017 - Edexcel - GCSE Biology - Question 3 - 2022 - Paper 1
Step 1
State the sexually transmitted infection that has the median number of people diagnosed.
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Answer
The sexually transmitted infection that has the median number of people diagnosed is gonorrhoea.
Step 2
Calculate the total number of people diagnosed with chlamydia in the UK in 2017.
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Answer
To calculate the total number of people diagnosed with chlamydia:
First, note the number of people diagnosed per 1000 for chlamydia, which is 3.7.
The total population of the UK is given as 66 million.
The formula to calculate the total number of people diagnosed with chlamydia is:
ext{Total Diagnosed} = rac{ ext{Population}}{1000} imes ext{Diagnosis Rate}
Substituting in the values:
ext{Total Diagnosed} = rac{66,000,000}{1000} imes 3.7 = 244,200
Therefore, the total number of people diagnosed with chlamydia in the UK in 2017 is 244,200.
Step 3
State why chlamydia can be described as a communicable disease.
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Answer
Chlamydia can be described as a communicable disease because it is passed or spread from person to person, typically through sexual contact.
Step 4
Give one way the transmission of chlamydia can be prevented.
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One way to prevent the transmission of chlamydia is by using condoms during sexual intercourse.
