Unit-VIII Order & Disorder in Biological SystemBy abdulslambsn@gmail.com / June 14, 2025 Quiz 8 | Unit-VIII Order & Disorder in Biological System Your Good Name: Your College Name: Morning/Evening/Private: Email: 1. Which of the following best defines "order" in a biological system? Random movement of particles Breakdown of molecules Mutation in DNA Structured arrangement of molecules for function None 2. The maintenance of internal environment within a narrow range is known as: Entropy Catabolism Homeostasis Thermogenesis None 3. Which cellular organelle plays a key role in maintaining order by synthesizing proteins: Mitochondria Nucleus Ribosome Lysosome None 4. The term entropy refers to: Energy creation Degree of randomness or disorder Temperature regulation Glucose metabolism None 5. Which law of thermodynamics relates to the increase in entropy in natural processes? Zeroth First Second Third None 6. Which of the following processes is an example of increasing order in biological systems? Hydrolysis of ATP Cell lysis DNA replication Protein denaturation None 7. Biological systems maintain order by: Destroying energy Creating entropy Using energy from surroundings Increasing body temperature None 8. Entropy tends to increase in isolated systems because: Cells require more ATP Molecules prefer organized states Randomness is energetically favored Energy is always conserved None 9. Which molecule stores energy that helps maintain cellular order? DNA Glucose ATP RNA None 10. Which process decreases entropy locally but increases it overall in the universe? Cell death Muscle contraction Protein folding Photosynthesis None 11. During protein folding, the entropy of the protein decreases. How is the second law of thermodynamics not violated? The entropy of water molecules increases Heat is released to increase system entropy Energy is used from DNA The folded state is more energetic None 12. Which of the following mechanisms leads to spontaneous increase in biological order? Passive diffusion Osmosis Self-assembly of lipid bilayer Apoptosis None 13. Which feature of life indicates continuous work against entropy? Growth Reproduction Organization Evolution None 14. In a living system, the increase of entropy is balanced by: Energy release Structural disintegration Ordered biosynthesis using energy Nuclear decay None 15. Which of the following increases disorder in the cell? Protein synthesis Organelle formation Oxidative stress Cytoskeleton organization None 16. Which thermodynamic parameter governs the spontaneity of biological reactions? Entropy only Temperature only Free energy (ΔG) Enthalpy only None 17. The decrease in entropy within a cell is permitted because: Cells are isolated systems Total entropy of system and surroundings increases Enzymes prevent entropy changes Water regulates all disorder None 18. ATP is used in cells to: Store DNA Increase entropy Provide energy for order-maintaining processes Disrupt homeostasis None 19. Which of the following structures contributes most to maintaining cellular order? Plasma membrane Centriole Golgi apparatus Cytosol None 20. How does glycolysis reflect the balance between order and disorder in cells? It neutralizes ATP and entropy It breaks glucose, releasing energy and increasing entropy overall It builds glucose and reduces entropy It uses oxygen to create structure None 21. Self-assembly of macromolecules occurs because: Energy is not required It is driven by specific molecular interactions It’s a random process RNA guides the process None 22. The primary disorder seen in protein misfolding diseases like Alzheimer’s is due to: Excess ATP Increase in ordered structures Accumulation of disordered aggregates Enzyme activation None 23. Which process does not directly contribute to increased entropy? Diffusion Cell lysis Active transport Combustion None 24. In biological terms, disorder is mostly synonymous with: Aging Organization Entropy Evolution None 25. The ability of biological systems to maintain low entropy depends on: Random mutations Continuous input of energy Spontaneous order Increased catabolism None 1 out of 3 Thanks For Submitting Your Quiz !!