Item 6 Smooth ER Centriole Cytoplasm Ribosome Cytosol Cristae Cilia Lysosomes Plasma membrane Chromatid Composed of phospholipid bilayer: Involved in mitosis: Site for protein synthesis: Stores calcium ions in muscle cells: Copy of a chromosome: Vesicles with powerful digestive enzymes: Intracellular fluid and organelles: Folds of the inner mitochondrial membrane: Intracellular fluid: Short, hairlike cellular extensions: Reset Help