During a chemistry practical, a student uses a color-based test strip to determine the concentration of metal ions in a solution.
They need to compare the color of the strip to a reference chart displayed on a poster on the classroom wall across the room.
The student struggles to match the color hue of the strip to the poster, and they also cannot read the concentration numbers printed on the poster.
Which statement could explain why?
The student is color blind and long-sighted.
The student is short-sighted.
The student is color blind and short-sighted.
The student is color blind.
135 exam-style questions on OCR GCSE Biology 3.1 Coordination and control – the nervous system, covering 3.1.1 Structure of the nervous system, 3.1.2 Coordinated response, 3.1.3 The reflex arc, 3.1.4 Structure of the eye, 3.1.5 Defects of the eye, 3.1.6 Structure and function of the brain, 3.1.7 Difficulties of investigating brain function, and 3.1.8 Limitations in treating nervous system damage. Each one has a worked solution and a mark scheme showing where the marks go.