ETEA MDCAT Past Paper 2024 61- Where are the enzymes required for the replication of HIV virus located? A. In the protein spikesB. Surrounding the viral coreC. Inside the capsidD. Outside the capsid View Answer Answer : C. Inside the capsid Description 62- The process of ATP synthesis through a combination of electrochemical and osmotic events is known as: A. FermentationB. GlycolysisC. Oxidative phosphorylationD. Oxidation of pyruvate to acetyl CoA View Answer Answer : C. Oxidative phosphorylation Description 63- Optimum pH for pancreatic lipase is: A. 2B. 4C. 6D. 8 View Answer Answer : D. 8 Description 64- Sugarcane contains ______. A. FructoseB. GlucoseC. RiboseD. Sucrose View Answer Answer : D. Sucrose Description 65- Sickle cell anaemia results from? A. Linkage between the polypeptide chainsB. Reduction in oxygen carrying capacity of haemoglobinC. Single amino acid substitution in the haemoglobin moleculeD. Viral infections of RNA viruses View Answer Answer : C. Single amino acid substitution in the haemoglobin molecule Description 66- Which is INCORRECT about the globular proteins? A. Abundantly found in hairB. Are spherical in shapeC. Have polypeptide chainsD. Soluble in water View Answer Answer : A. Abundantly found in hair Description 67- What is the ester of fatty acids and long chain alcohol called? A. AcylglycerolB. GlycerolC. PhospholipidD. Wax View Answer Answer : D. Wax Description 68- Lipids, which do not contain fatty acid are: A. Neutral lipidsB. Phosphatidic acidsC. SteroidsD. Waxes View Answer Answer : C. Steroids Description 69- Which one of the following molecules has a zero-dipole moment? A. BF₃B. NF₃C. NH₃D. H₂O View Answer Answer : A. BF₃ Description 70- The unhybridized p orbital in sp² hybridization is? A. In the same planeB. Out of the planeC. Parallel to sp² orbitalsD. Perpendicular to sp² orbitals View Answer Answer : D. Perpendicular to sp² orbitals Description 71- 760 torr is equal to ___ Pascal. A. 1B. 76C. 760D. 101325 View Answer Answer : D. 101325 Description 72- How many grams of CO₂ can be produced by thermally decomposing 10 moles of ZnCO₃? A. 320B. 360C. 400D. 440 View Answer Answer : D. 440 Description 73- Molar heat of vaporization of water is? A. 40.7 cal/molB. 40.7 J/molC. 40.7 kcal/molD. 40.7 kJ/mol View Answer Answer : D. 40.7 kJ/mol Description 74- Distillation under very reduced pressure is _______ distillation. A. DestructiveB. FractionalC. SteamD. Vacuum View Answer Answer : D. Vacuum Description 75- The example of metallic solid is? A. BB. CC. CuD. Si View Answer Answer : C. Cu Description 76- When a crystalline substance conducts current in one direction but not through other directions of the crystal, this property is? A. AllotropyB. AnisotropyC. IsomorphismD. Polymorphism View Answer Answer : B. Anisotropy Description 77- Forward reaction is the one that: A. Is very slow at the beginning of the reactionB. Reacts to form reactantsC. Speeds up gradually and at equilibrium its rate becomes constantD. Takes place from left to right as given in chemical equation View Answer Answer : D. Takes place from left to right as given in chemical equation Description 78- How many moles of NaCl are produced from 16.5g of HCl, according to the neutralization reaction? HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O(l) A. 0.252B. 0.452C. 0.652D. 0.852 View Answer Answer : B. 0.452 Description 79- In the production of SO₃ from SO₂ and Oxygen, the yield of SO₃ is increased by? A. Adding a catalystB. Adding more SO₂C. Increasing temperatureD. Removing oxygen View Answer Answer : B. Adding more SO₂ Description 80- Consider N₂ + 3H₂(g) = 2NH₃(g) ΔH = -92.46kJ/mol The optimum temperature (°C) to produce ammonia is? A. 0B. 450C. 5000D. Constant temperature View Answer Answer : B. 450 Description 1 2 3 4 5 6 7 8 9 10
