A-LevelBiologyGas exchangeMay/June 2016Paper 1 Q321 Mark
A student was asked to describe the differences between four microscope slides of sections taken from different parts of the gas exchange system. slide 1 not present: cartilage, glands present: few goblet cells, ciliated epithelial cells, smooth muscle slide 2 present: incomplete cartilage rings, glands, goblet cells, ciliated epithelial cells, smooth muscle slide 3 not present: cartilage, glands, goblet cells, smooth muscle present: squamous epithelial cells slide 4 present: plates of cartilage, glands, goblet cells, ciliated epithelial cells, smooth muscle Which is the correct identification of the parts of the gas exchange system?
Aslide 1: alveolus, slide 2: bronchiole, slide 3: bronchus, slide 4: trachea
Bslide 1: bronchiole, slide 2: bronchus, slide 3: alveolus, slide 4: trachea
Cslide 1: bronchiole, slide 2: trachea, slide 3: alveolus, slide 4: bronchus
Dslide 1: bronchus, slide 2: trachea, slide 3: bronchiole, slide 4: alveolus
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of gas exchange within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep