18. Match the organelle with its function. __ Cell Wall __ Cell Membrane __ Nucleus __ Nucleolus __ Ribosome __ Chloroplast __ Mitochondria __ E.R. __ Central Vacuole __ Golgi Apparatus __ Lysosomes Vesicle A. Contains enzymes that digest food and worn out organelles B. The energy producing structure in a cell. C. Fills with water in a plant cell. D. Makes proteins. E. Synthesizes proteins and lipids. F. Receives materials and packages them for transport in the cell. G. Synthesizes polypeptides and is free floating or on the ER. H. Performs photosynthesis. I. The control centre for all cellular activities. J. A rigid structure that gives shape and protection to plant cells. K. Determines what gets into and out of the cell. L. Membrane bound sac used for transport and storage of substar

* **Cell Wall:** **J.** A rigid structure that gives shape and protection to plant cells.<br />* **Cell Membrane:** **K.** Determines what gets into and out of the cell.<br />* **Nucleus:** **I.** The control centre for all cellular activities.<br />* **Nucleolus:** **G.** Synthesizes polypeptides and is free floating or on the ER. (While the nucleolus *begins* ribosome assembly, ribosomes primarily synthesize polypeptides. This is the closest match given the options.)<br />* **Ribosome:** **D.** Makes proteins.<br />* **Chloroplast:** **H.** Performs photosynthesis.<br />* **Mitochondria:** **B.** The energy-producing structure in a cell.<br />* **E.R. (Endoplasmic Reticulum):** **E.** Synthesizes proteins and lipids.<br />* **Central Vacuole:** **C.** Fills with water in a plant cell.<br />* **Golgi Apparatus:** **F.** Receives materials and packages them for transport in the cell.<br />* **Lysosomes:** **A.** Contains enzymes that digest food and worn-out organelles.<br />* **Vesicle:** **L.** Membrane-bound sac used for transport and storage of substances.<br />