Cell Structure and Organelles MCQs Quiz 13 Posted on April 2, 2026April 2, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 13 Cell Biology Multiple Choice Questions 1. Protists are an incredibly diverse group, and their outer coverings (cell walls) are ____________ Always absent Composed of chitin Composed of cellulose Chemically Variable 2. Facultative heterochromatin can _______ Switch between active and inactive states Exist only in bacteria Contain no DNA Never change 3. Chloroplasts are mainly responsible for _______ Storage Photosynthesis Protein synthesis Respiration 4. Chromoplasts are commonly found in _______ of plants Roots Leaves Fruits and flowers Seeds 5. Karyotype refers to _______ Chromosome number and morphology Protein structure RNA content DNA sequence 6. Which cytoskeletal component is involved in autophagosome trafficking? DNA Actin only Microtubules Intermediate filaments 7. The site of light reaction in chloroplast is _______ Outer membrane Thylakoid membrane Stroma Inner membrane 8. Acrocentric chromosomes are characterized by _______ Equal arms Absence of centromere Centromere in middle Very short p arm 9. Telomere dysfunction can lead to _________________ Enhanced transcription Improved replication fidelity Reduced mutation rates Chromosome end-to-end fusion and instability 10. During cell division (meiosis and mitosis) sister chromatids are joined at _______ Nucleus Centromere Telomere Endoplasmic Reticulum Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 13 Cell Biology Multiple Choice Questions
