DP Biology (last assessment 2024)
Question 17N.3.SL.TZ0.18a.ii
| Date | November 2017 | Marks available | [Maximum mark: 3] | Reference code | 17N.3.SL.TZ0.18a.ii |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | Outline | Question number | a.ii | Adapted from | N/A |
a.ii.
[Maximum mark: 3]
17N.3.SL.TZ0.18a.ii
The diagram shows the liver. The arrows show the direction of blood flow into and out of the liver.
[Source: © International Baccalaureate Organization 2017]
(a.ii)
Outline the function of the blood vessel labelled B.
[3]
Markscheme
a. takes blood from intestine/spleen/pancreas/stomach to liver
b. carries digested food/nutrients/glucose
c. prevents glucose entering the general circulation
d. helps maintain osmotic potential of blood
e. allows toxins to be removed
[Max 3 Marks]
