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Question 17N.2.SL.TZ0.c

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.2.SL.TZ0.c
Level SL Paper 2 Time zone TZ0
Command term State Question number c Adapted from N/A
c.
[Maximum mark: 1]
17N.2.SL.TZ0.c

The elasticity and resilience of the lungs are mainly provided by the protein elastin. Degradation of elastin produces peptides called desmosines.

Desmosines in urine or blood plasma have been proposed as biomarkers of lung degradation. The relationship between urine desmosines, plasma desmosines and COPD severity in patients was assessed.

[Source: Reproduced with permission of the © ERS 2012. European Respiratory Journal Apr 2012, 39 (4) 839–845; DOI: 10.1183/09031936.00064611]

State the disease severity group that has the highest range of plasma desmosines.

[1]

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