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