DP Biology (last assessment 2024)
Question 17N.3.SL.TZ0.b
| Date | November 2017 | Marks available | [Maximum mark: 2] | Reference code | 17N.3.SL.TZ0.b |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | Distinguish | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 2]
17N.3.SL.TZ0.b
The diagram shows the liver. The arrows show the direction of blood flow into and out of the liver.
[Source: © International Baccalaureate Organization 2017]
Distinguish between the structure of liver sinusoids and capillaries.
[2]
Markscheme
a. sinusoids have open pores/fenestrations/discontinuous endothelium and capillary endothelium is continuous/does not contain fenestrations
b. Kupffer cells are located inside sinusoids but not in capillaries
c. sinusoids larger in diameter than capillaries
Accept labelled diagrams
[Max 2 Marks]
