DP Biology (last assessment 2024)
Question 18M.3.SL.TZ1.3
| Date | May 2018 | Marks available | [Maximum mark: 5] | Reference code | 18M.3.SL.TZ1.3 |
| Level | SL | Paper | 3 | Time zone | TZ1 |
| Command term | Deduce, Determine, Identify | Question number | 3 | Adapted from | N/A |
3.
[Maximum mark: 5]
18M.3.SL.TZ1.3
The image is a transmission electron micrograph of part of two adjacent pancreatic cells.
(a)
Using the scale bar, determine the diameter of the nucleus of the cell on the left, giving the units.
[2]
Markscheme
answer between 1350 − 1560 nm (accept between 1.35 and 1.56 μm)
Correct answer and units for 2 marks.
(b)
Deduce the magnification of the image.
[2]
Markscheme
allow 27 500 − 32 500 (×/times)
(c)
Identify the structure labelled A.
[1]
Markscheme
Golgi apparatus
Accept the first answer only.