PIMSO 2022 - Science - Grade 7 - National Round Question 3

Question 3

This is an electron micrograph of a human plasma cell. What is the function of the (*) indicated component?
Reference: Klein et al. Blut, 1977, 35(1), 11–9.

1. Contain the genetic material of the cell
2. Produce energy to support cellular functions
3. Sort, pack, and transport proteins to designated sites
4. Break down food particles and used organelles
5. Make ribosomes which synthesize proteins