1. A relatively small organelle that contains enzymes that oxidize organic substances ______ 2. Composed of RNA and protein, this organelle synthesizes proteins ______ 3. An organelle that uses oxygen to produce ATP ______ 4. A network of protein filaments that extend throughout the cytoplasm ______ 5. A large organelle that contains genomic DNA ______ 6. Found in the nucleus, this organelle contains DNA, RNA, and protein ______ 7. An organelle that contains centrioles, which are composed of microtubules, and pericentriolar material with protein complexes that play a critical role during cell division ______ 8. A relatively small organelle that contains hydrolases that break down worn out parts of the cell ______ 9. A membranous organelle that modifies proteins and packages them in transport vesicles ______ 10. A network of tubules that synthesize and transport materials needed for cellular growth and other functions ______ 11. A membranous organelle that is covered in ribosomes ______