Fig. 3 shows some of the structures of the respiratory system - OCR - GCSE Physical Education - Question 10 - 2020 - Paper 1
Question 10
Fig. 3 shows some of the structures of the respiratory system.
Name the structures labelled A and B.
A = ..................................................
B = .... show full transcript
Worked Solution & Example Answer:Fig. 3 shows some of the structures of the respiratory system - OCR - GCSE Physical Education - Question 10 - 2020 - Paper 1
Step 1
A =
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Answer
Structure A is the trachea, which is the main airway that conducts air to and from the lungs.
Step 2
B =
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Answer
Structure B is the alveoli, tiny air sacs in the lungs where gas exchange occurs.
