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Question 18N.3.SL.TZ0.19a.ii

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.3.SL.TZ0.19a.ii
Level SL Paper 3 Time zone TZ0
Command term Outline Question number a.ii Adapted from N/A
a.ii.
[Maximum mark: 2]
18N.3.SL.TZ0.19a.ii

The scanning electron micrograph (SEM) shows a cell in the liver responsible for the breakdown of erythrocytes. The cells are found in the lining of the sinusoid walls.

(a.ii)

Outline the role of the cell in recycling iron in the body.

[2]

Markscheme

a. ingests red blood cells by phagocytosis ✔

b. splits the hemoglobin into heme «and globin»
OR
heme group broken down into iron «and bilirubin»
OR
hemoglobin broken down into iron ✔

c. releases iron for transport ✔

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