A-LevelBiologyGas exchange9700/12 · May/June 2018 · Q321 Mark

The graph shows two oxygen dissociation curves, one for a tissue at rest and one for the same tissue during exercise. [Figure 32.1]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A1 and 3

B1 and 4

C2 and 3

D2 and 4

✓ Correct answer

D: 2 and 4

Oracle Prep sorts past-paper questions by topic, so you can drill Gas exchange and see which topics are most likely to come up next.

Topic: Gas exchange, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2018 Paper 1 Variant 2, question 32.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Two of the requirements of an efficient gas exchange system are a large surface area and a short diffusion distance. …

Oxyhaemoglobin, carbaminohaemoglobin, haemoglobinic acid and carbonic anhydrase are found inside red blood cells. How…

Which of these structures typically contain cartilage and cilia? 1 bronchi 2 bronchioles 3 trachea

Which statements about mitosis are correct? 1 Mitosis results in genetically identical cells. 2 Mitosis is involved …

A human chromosome is made up of different parts. Some parts of a typical human chromosome are more numerous than oth…

A piece of double-stranded DNA containing 12 × 10³ nucleotides is transcribed and translated to produce a single poly…