- Identify (a) a similarity and (b) a difference between facilitated transport and active transport; do not state they both move substances across membranes.
- What is an organelle? Which organelle is a processing, packaging and shipping center for proteins and lipids?
- Where would you find the nucleolus? What happens there?
- What is the role of the ribosome?
- Which organelle digests macromolecules, worn out cell parts, debris and disease-causing microbes?