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Question 18M.2.SL.TZ1.c

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.2.SL.TZ1.c
Level SL Paper 2 Time zone TZ1
Command term Explain Question number c Adapted from N/A
c.
[Maximum mark: 2]
18M.2.SL.TZ1.c

Explain how cuts in the skin are sealed by blood clotting.

[2]

Markscheme

a. clotting factors released from platelets 

b. clotting process involves a cascade/series of reactions 

c. produces thrombin 

d. causes rapid conversion of fibrinogen into fibrin 

e. fibrin makes a mesh to seal the wound OWTTE

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