Cell Structure and Organelles MCQs Quiz 28 Posted on April 6, 2026Author agropublishers 0 1. The nucleoid differs from the nucleus because it _______ Lacks a surrounding membrane Has ribosomes attached Contains RNA only Contains multiple chromosomes 2. The cytosol is best described as _______ Gas-filled compartment Solid matrix Gel-like aqueous solution Lipid storage body 3. In glycolysis, ATP is produced by _______ Electron transport chain Substrate-level phosphorylation Chemiosmosis Oxidative phosphorylation 4. A nucleosome consists of DNA wrapped around _______ Histone proteins Membrane proteins RNA molecules Lipids 5. The majority of ATP in aerobic cells is generated during _______ Fermentation Glycolysis Oxidative phosphorylation Citric acid cycle 6. The generation of H₂O₂ inside peroxisomes is mainly due to ___________ DNA degradation Oxidative reactions by oxidases Hydrolytic reactions ATP hydrolysis 7. Membrane proteins that span the entire bilayer are called _______ Cytoskeletal proteins Storage proteins Integral proteins Peripheral proteins 8. Endosymbiotic origin of mitochondria is supported by _______ Circular genome and prokaryotic-like ribosomes Lack of protein synthesis Presence of histones Absence of membranes 9. Which cell type contains histone proteins _______ Archaeal only Prokaryotic Bacterial only Eukaryotic 10. Which cell type divides by binary fission _______ Plant Fungal Eukaryotic Prokaryotic Loading … Question 1 of 10
