Date | November 2010 | Marks available | 1 | Reference code | 10N.3.HL.TZ0.14 |
Level | Higher level | Paper | Paper 3 | Time zone | TZ0 |
Command term | State | Question number | 14 | Adapted from | N/A |
Question
Label the section of healthy liver tissue below.
I.
II.
III.
Outline two roles of the liver.
List two materials that are not absorbed but are egested by the body.
State an example of a protein hormone.
Markscheme
I. hepatic cells / hepatocytes / liver cells / liver tissue;
II. hepatic vein / blood cells;
III. sinusoids;
a. storage of nutrients;
b. detoxification of poisons;
c. breakdown of hemoglobin;
d. production of bile pigments;
e. synthesis of plasma proteins;
f. synthesis of cholesterol;
Award [1] for two of the following.
cellulose / lignin / bile pigments / bacteria / intestinal cells
Do not accept fibre.
insulin / glucagon / prolactin / somatotrophin
Award other suitable examples.
Examiners report
The cell types and structures in the micrograph of the liver were not well identified. The other parts of this question were answered well enough.
The cell types and structures in the micrograph of the liver were not well identified. The other parts of this questions were answered well enough.
The cell types and structures in the micrograph of the liver were not well identified. The other parts of this question were answered well enough.
The cell types and structures in the micrograph of the liver were not well identified. The other parts of this question were answered well enough.