DP Biology (first assessment 2025)
Question 21M.2.SL.TZ2.c
Date | May 2021 | Marks available | [Maximum mark: 4] | Reference code | 21M.2.SL.TZ2.c |
Level | SL | Paper | 2 | Time zone | TZ2 |
Command term | Identify | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 4]
21M.2.SL.TZ2.c
Testis cells are eukaryotic cells. Identify the structures seen under the electron microscope in testis cells that are not present in prokaryotic cells.
[4]
Markscheme
a. nucleus/nuclear membrane ✔
b. membrane bound organelles ✔
c. mitochondria ✔
d. rough ER/smooth ER/golgi apparatus ✔
e. lysosomes / centrioles ✔
f. large/80S ribosomes / ribosomes attached to a membrane ✔
g. linear chromosomes / histones ✔


