1. The process of cellular respiration occurs in: 2. The smooth endoplasmic reticulum (SER) is primarily involved in the synthesis of: 3. Ribosomes are composed of: 4. What is the primary function of ribosomes? 5. Which cell organelle is involved in packaging and modifying proteins? 6. Which cell organelle is responsible for breaking down waste … Continue reading 9th Class Biology Chapter 3: The Cell – New Syllabus