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