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