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