Cell Structure and Organelles MCQs Quiz 19 Posted on April 4, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 19 Cell Biology Multiple Choice Questions 1. __________________ is selectively permeable part of cells Plasma membrane Cytoplasm Nucleus Cell wall 2. _______is considered a non-living structure because it is an extracellular product secreted by the cell itself Cell wall Cytoplasm Mitochondria Nucleus 3. The secondary cell wall is mainly enriched with _______ Lignin Cellulose Hemicellulose Pectin 4. Which organelle is involved in intracellular digestion? Centrosome Ribosome Lysosome Mitochondria 5. ___________ requires to import most of its proteins from cytosol Ribosome Golgi apparatus Nucleus Mitochondria 6. Peptidoglycan, found in bacterial cell wall, is also known as _______ Pectin Murein Chitosan Cellulin 7. Protein synthesis in cells occurs in _______ Lysosomes Ribosomes Mitochondria Nucleus 8. Gram-positive bacteria have _______ Thin peptidoglycan layer No cell wall Thick peptidoglycan layer Cellulose-rich wall 9. The cell wall of fungi is primarily composed of _______ Silica Peptidoglycan Cellulose Chitin 10. _________ Known for lipid synthesis, detoxification, and the production of steroid hormones in specialized cells Smooth Endoplasmic Reticulum Golgi apparatus Rough Endoplasmic Reticulum Ribosome Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 19 Cell Biology Multiple Choice Questions