Callum Owen, a former pupil at Sir Thomas Boteler CofE High School, won a gold medal meaning he finished in the top 6% of more than 7,500 students who took the test.
Ex-Cardinal Newman Catholic School pupil Matthew Peach collected silver, putting him in the top 10%, whilst Kirsty Mullaney and Cameron Naylor took home bronze.
Priestley’s Jack Griffiths was highly commended and Leah Hamblett also received a commendation.
“For me, the Biology Olympiad was a way to put into practice and revise what I have learnt in lessons. Getting a Gold Medal has given me the confidence to do well this year in my Biology exams,” said Callum, who is taking A-Levels in Biology, Chemistry and Maths.
Each year Priestley College gives those on its Biology A-Level course the chance to volunteer and take the Olympiad test.
It takes place outside of lessons in the form of a two-hour multiple-choice test.