Cell Structure and Organelles MCQs Quiz 18 Posted on April 4, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 18 Cell Biology Multiple Choice Questions 1. _______ is responsible for the formation of lysosomes Golgi apparatus Ribosome Nucleus Mitochondria 2. _____________ initiates the assembly of spindle fibers during early stages of cell division Lysosome Centrosome Ribosome Golgi body 3. _______is a tough, rigid outer layer found in plant cells that provides structural support, protection, and a fixed shape Plasma membrane Nucleus Cell wall Cytoplasm 4. ______________ is the primary organelle responsible for storing water, nutrients, and maintaining turgor pressur in plant cells Golgi apparatus Vacuole Mitochondria Ribosome 5. Condensin proteins function in _______ ATP synthesis Protein folding Chromosome condensation DNA replication 6. ________________ is known as the “powerhouse of the cell” Ribosome Mitochondria Chloroplast Nucleus 7. ______________ are membrane-bound organelle containing an internal system of interconnected, flattened membrane sacs called thylakoids Nucleus Mitochondria Chloroplast Ribosome 8. Which organelle is responsible for secretion secretion of proteins and lipids within the cell_______ Nucleus Golgi Complex Chloroplast Mitochondria 9. The nucleolus is a specialized non-membrane-bound structure in eukaryotic cells, these are site of _______ Protein modification DNA replication Lipid synthesis Ribosome assembly 10. _______is a key organelle responsible for storing and releasing calcium ions to regulate their concentration in the cytoplasm of eukaryotic cells Nucleus Ribosome Golgi body Smooth endoplasmic reticulum Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 18 Cell Biology Multiple Choice Questions