DP Biology (last assessment 2024)

Test builder »

Question 18M.3.SL.TZ1.b

Select a Test
Date May 2018 Marks available [Maximum mark: 3] Reference code 18M.3.SL.TZ1.b
Level SL Paper 3 Time zone TZ1
Command term Outline Question number b Adapted from N/A
b.
[Maximum mark: 3]
18M.3.SL.TZ1.b

Outline how the liver recycles the components of red blood cells.

[3]

Markscheme

a. Kupffer cells engulf ruptured red blood cells by phagocytosis 

b. hemoglobin is broken down into component molecules 

c. some iron (from hemoglobin) transported to bone marrow/stored in liver 

d. protein component of hemoglobin converted to amino acids 

e. rest of heme component forms bile pigments

Syllabus sections