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