INTEGRATED SCIENCE 2024/2025 Trial Test Questions (50) Objective Questions

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Select the correct options for each Questions below

1. What is the basic structural and functional unit of life?

a) Cell. b) Tissue. c) Organ. d) Organism.

2. Which organelle is responsible for energy production in the cell?

a) Mitochondria. b) Endoplasmic reticulum. c) Golgi apparatus. d) Chloroplast.

3. What is the process by which genetic information is passed from parents to offspring?

a) Replication. b) Translation. c) Transcription. d) Heredity.

4. What is the study of how organisms evolve and change over time?

a) Genetics. b) Heredity. c) Evolution. d) Ecology.

5. What is the name of the body system responsible for the movement of the human body?

a) Respiratory system. b) Muscular system. c) Circulatory system. d) Nervous system.

6. Which part of the plant is responsible for photosynthesis?

a) Stomata. b) Chloroplast. c) Xylem. d) Phloem.

7. What is the term for the study of interactions between organisms and their environment?

a) Ecology. b) Genetics. c) Physiology. d) Evolution.

8. What is the smallest unit of an element that retains its chemical properties?

a) Atom. b) Molecule. c) Cell. d) Proton.

9. What type of bond involves the sharing of electrons between atoms?

a) Ionic bond. b) Covalent bond. c) Metallic bond. d) Hydrogen bond.

10. What is the law that states that mass cannot be created or destroyed in a chemical reaction?

a) Law of conservation of mass. b) Law of definite proportions. c) Law of multiple proportions. d) Avogadro's law.

11. What type of reaction occurs when an acid reacts with a base?

a) Oxidation-reduction reaction. b) Precipitation reaction. c) Neutralization reaction. d) Acid-base reaction.

12. What is the study of the rates of chemical reactions?

a) Chemical equilibrium. b) Chemical kinetics. c) Chemical thermodynamics. d) Chemical bonding.

13. What is the term for a compound that contains carbon and hydrogen?

a) Inorganic compound. b) Organic compound. c) Ionic compound. d) Covalent compound.

14. What branch of physics deals with the motion of objects?

a) Mechanics. b) Thermodynamics. c) Electromagnetism. d) Optics.

15. What is the term for the transfer of heat energy from one object to another through direct contact?

a) Conduction. b) Convection. c) Radiation. d) Insulation.

16. What is the study of the relationships between living organisms and their environment?

a) Genetics. b) Evolution. c) Ecology. d) Physiology.

17. Which part of the atom contains the protons and neutrons?

a) Nucleus. b) Electron cloud. c) Electron shell. d) Subatomic shell.

18. What type of bond forms when electrons are transferred from one atom to another?

a) Ionic bond. b) Covalent bond. c) Metallic bond. d) Hydrogen bond.

19. What is the name of the process by which plants convert light energy into chemical energy?

a) Respiration. b) Photosynthesis. c) Transpiration. d) Fermentation.

20. What is the process by which organisms release stored energy from food?

a) Respiration. b) Photosynthesis. c) Fermentation. d) Transpiration.

21. Which law states that energy cannot be created or destroyed, only transformed from one form to another?

a) Law of conservation of energy. b) First law of thermodynamics. c) Second law of thermodynamics. d) Law of conservation of mass.

22. Which process involves the transfer of thermal energy through a fluid (liquid or gas) due to density differences?

a) Conduction. b) Convection. c) Radiation. d) Insulation.

23. What is the term for the variety of life in a particular habitat or ecosystem?

a) Population. b) Community. c) Biodiversity. d) Ecosystem.

24. What is the term for a group of organisms of the same species living in the same area?

a) Population. b) Community. c) Ecosystem. d) Biosphere.

25. What is the term for the process by which organisms change over time?

a) Adaptation. b) Evolution. c) Natural selection. d) Mutation.

26. What is the term for the branch of biology that deals with the study of heredity and variation in organisms?

a) Genetics. b) Evolution. c) Ecology. d) Physiology.

27. What is the name of the molecule that carries genetic information?

a) DNA. b) RNA. c) Protein. d) Carbohydrate.

28. What is the term for the process by which DNA is copied into RNA?

a) Transcription. b) Translation. c) Replication. d) Mutation.

29. What is the term for the process by which RNA is used to make proteins?

a) Transcription. b) Translation. c) Replication. d) Mutation.

30. Which scientist proposed the theory of evolution by natural selection?

a) Charles Darwin. b) Gregor Mendel. c) Alfred Russel Wallace. d) Lamarck.

31. What is the name of the process by which traits that enhance survival and reproduction become more common in a population over time?

a) Adaptation. b) Variation. c) Mutation. d) Natural selection.

32. Which scientist is known as the father of genetics?

a) Charles Darwin. b) Gregor Mendel. c) Alfred Russel Wallace. d) Lamarck.

33. What is the term for the process by which genes are transferred from parents to offspring?

a) Translation. b) Transcription. c) Replication. d) Inheritance.

34. What is the term for the process by which DNA makes an exact copy of itself?

a) Transcription. b) Translation. c) Replication. d) Mutation.

35. Which process involves the decoding of genetic instructions to synthesize proteins?

a) Transcription. b) Translation. c) Replication. d) Mutation.

36. What is the name of the organelle responsible for protein synthesis in eukaryotic cells?

a) Ribosome. b) Nucleus. c) Mitochondrion. d) Golgi apparatus.

37. What is the name of the fluid-filled sac found in plant cells that stores water and helps maintain turgor pressure?

a) Central vacuole. b) Chloroplast. c) Nucleus. d) Ribosome.

38. Which part of the cell is responsible for producing energy in the form of ATP?

a) Nucleus. b) Ribosome. c) Mitochondrion. d) Golgi apparatus.

39. What is the term for the smallest unit of an element that retains the properties of that element?

a) Molecule. b) Compound. c) Atom. d) Electron.

40. Which subatomic particle carries a negative charge?

a) Proton. b) Neutron. c) Electron. d) Nucleus.

41. What is the term for the center of an atom that contains protons and neutrons?

a) Electron cloud. b) Nucleus. c) Electron shell. d) Subatomic shell.

42. Which type of bond is formed by the electrostatic attraction between positively and negatively charged ions?

a) Ionic bond. b) Covalent bond. c) Metallic bond. d) Hydrogen bond.

43. Which type of reaction involves the combination of two or more substances to form a new compound?

a) Decomposition. b) Synthesis. c) Single displacement. d) Double displacement.

44. What is the term for a substance that increases the rate of a chemical reaction without undergoing any permanent chemical change itself?

a) Catalyst. b) Reactant. c) Product. d) Inhibitor.

45. What is the term for a substance that decreases the rate of a chemical reaction?

a) Catalyst. b) Reactant. c) Product. d) Inhibitor.

46. What is the term for a substance that can act as both an acid and a base?

a) Acid. b) Base. c) Salt. d) Amphoteric substance.

47. What is the term for a substance that donates protons in a chemical reaction?

a) Acid. b) Base. c) Salt. d) Amphoteric substance.

48. What is the term for a substance that accepts protons in a chemical reaction?

a) Acid. b) Base. c) Salt. d) Amphoteric substance.

49. Which of the following is a property of acids?

a) Turn blue litmus paper red. b) Turn red litmus paper blue. c) Have a sour taste. d) All of the above.

50. Which of the following is a property of bases?

a) Turn blue litmus paper red. b) Turn red litmus paper blue. c) Have a sour taste. d) Have a bitter taste and feel slippery.