A2.2

1. The rigid outer layer found in plants and fungi but not animals.
4. The organelle in plants that captures light energy for photosynthesis.
5. A network of microtubules and microfilaments that provides structural support.
9. The apparatus responsible for modifying and packaging proteins for secretion.
11. The membrane that regulates the passage of materials into and out of the cell.
13. Hair-like extensions on bacteria used for attachment or DNA transfer.
14. A large fluid-filled organelle used for storage and maintaining turgor in plants.
15. A structure in animal cells that helps organize microtubules during division.
17. Short hair-like projections used for movement or sensing.
19. The region in a prokaryote where the circular DNA is located.

2. An organelle containing digestive enzymes to break down macromolecules.
3. The organizational strategy of using membranes to separate metabolic processes.
6. The "reticulum" that can be rough or smooth depending on ribosome presence.
7. A complex cell type containing a nucleus and specialized compartments.
8. The site of polypeptide synthesis found in all cell types.
10. The double-membrane organelle where aerobic respiration occurs.
12. A small membrane-bound sac used for transport within the cell.
13. A simple cell type lacking a nucleus and membrane-bound organelles.
16. Long whip-like structures used for cellular locomotion.
18. The double-membrane organelle that houses the cells chromosomes.