Cell Structure and Organelles MCQs Quiz 22 Posted on April 4, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 22 Cell Biology Multiple Choice Questions 1. ________________ forms the bilayer structure of the plasma membrane Waxes Triglycerides Phospholipids Steroids 2. The strong fluorescence of the Y chromosome in Q-banding is attributed to____________- High GC content Abundance of repetitive AT-rich heterochromatin Presence of ribosomal DNA clusters High gene density 3. Mitochondria contain their own unique genetic material, primarily characterized as ______________ Linear chromosomes Plasmid DNA Circular DNA Single-stranded RNA only 4. Which protein polymer forms microtubules? Myosin Tubulin Keratin Actin 5. Electron microscopy is used in organelle isolation to assess _______ Purity of fractions Transcription rate DNA sequence Protein structure 6. The nucleolus is primarily involved in the synthesis of ___________ DNA polymerase Messenger RNA (mRNA) Ribosomal RNA (rRNA) Transfer RNA (tRNA) 7. The smooth endoplasmic reticulum is primarily involved in the synthesis of which molecules? Lipids and steroids Amino acids Nucleotides Proteins for secretion 8. Rate-zonal centrifugation separates particles based on _______ Chemical composition Enzyme activity Sedimentation velocity Charge differences 9. ___________ is the main component of the central vacuole in plant cells Water Protein crystals DNA Starch granules 10. _____________ are membrane-bound organelles with their primary function is to generate ATP (adenosine triphosphate) Mitochondria Golgi apparatus Lysosomes Ribosomes Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 22 Cell Biology Multiple Choice Questions
