Integrated Science 2024/2025 B.E.C.E Trial Test Questions (50) Objective Questions ( Test 1)

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Select the correct options for each Questions below

1. What is the primary function of the heart in the human body?

a) To control the body's temperature b) To digest food c) To pump blood throughout the body d) To filter waste from the blood

2. What is photosynthesis?

a) The process by which plants digest food b) The process by which plants convert light energy into chemical energy c) The process by which animals convert food into energy d) The breathing process in animals

3. What is the most abundant gas in the Earth's atmosphere?

a) Oxygen b) Carbon dioxide c) Nitrogen d) Hydrogen

4. Which part of the plant is responsible for making food?

a) Root b) Stem c) Leaf d) Flower

5. Which of the following is not a renewable resource?

a) Solar energy b) Wind energy c) Coal d) Geothermal energy

6. What is the boiling point of water at sea level?

a) 0°C b) 100°C c) 50°C d) 212°F

7. What is the chemical symbol for Gold?

a) Au b) Ag c) Go d) Ge

8. Which organ in the human body is responsible for filtering blood?

a) Heart b) Liver c) Kidneys d) Lungs

9. What is the function of the roots in a plant?

a) To produce food through photosynthesis b) To support the plant and absorb water and minerals from the soil c) To attract pollinators d) To release oxygen into the atmosphere

10. Which layer of the Earth is made mostly of iron and nickel?

a) Crust b) Mantle c) Outer core d) Inner core

11. What is the primary source of energy for the Earth's climate system?

a) The Moon b) The Sun c) Geothermal heat d) Wind

12. Which gas is most responsible for the greenhouse effect on Earth?

a) Oxygen b) Carbon dioxide c) Nitrogen d) Hydrogen

13. Which of the following is not a form of renewable energy?

a) Solar power b) Wind power c) Nuclear power d) Hydroelectric power

14. What is the main function of the respiratory system?

a) To digest food b) To circulate blood c) To exchange gases (oxygen and carbon dioxide) d) To excrete waste materials

15. In which part of a plant does photosynthesis primarily take place?

a) Stem b) Roots c) Leaves d) Flowers

16. What are the building blocks of proteins?

a) Nucleotides b) Amino acids c) Fatty acids d) Sugars

17. Which layer of the atmosphere is closest to the Earth?

a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere

18. What is the main function of the nervous system?

a) To regulate body temperature b) To produce hormones c) To exchange gases d) To send and receive signals throughout the body

19. What is the chemical symbol for Sodium?

a) So b) Sa c) Sn d) Na

20. What is the function of the mitochondria in a cell?

a) To produce energy (ATP) b) To store genetic information c) To synthesize proteins d) To detoxify harmful substances

21. What causes the phases of the Moon?

a) The Earth's shadow falling on the Moon b) The Moon's shadow falling on the Earth c) The relative positions of the Sun, Moon, and Earth d) The Moon's rotation around its axis

22. Which part of the plant is primarily responsible for water and nutrient absorption from the soil?

a) Leaves b) Roots c) Stem d) Flowers

23. What is the primary role of chlorophyll in photosynthesis?

a) It helps in the absorption of water b) It captures light energy from the sun c) It transports nutrients from the soil d) It releases oxygen into the atmosphere

24. What phenomenon explains why we experience seasons on Earth?

a) The Earth's rotation on its axis b) The Earth's revolution around the Sun c) The tilt of the Earth's axis relative to its orbital plane d) The Moon's gravitational pull on the Earth

25. Which of the following is not a characteristic of living organisms?

a) Ability to reproduce b) Ability to grow c) Ability to synthesize inorganic compounds d) Response to environmental stimuli

26. What is the main component of the Sun?

a) Oxygen b) Hydrogen c) Carbon d) Iron

27. Which of the following elements is most abundant in the Earth's crust?

a) Iron b) Oxygen c) Silicon d) Aluminum

28. Which process involves the splitting of water molecules during photosynthesis?

a) Carbon fixation b) Photolysis c) Glycolysis d) Fermentation

29. What is the primary cause of tides on Earth?

a) The rotation of the Earth on its axis b) The gravitational pull of the Sun and the Moon on Earth's oceans c) The Earth's revolution around the Sun d) Wind patterns over the oceans

30. In which cell organelle does cellular respiration occur?

a) Nucleus b) Chloroplast c) Mitochondria d) Ribosome

31. What type of rock is formed by the cooling and solidification of magma or lava?

a) Sedimentary b) Igneous c) Metamorphic d) Crystal

32. What is the primary function of DNA in cells?

a) To store and transmit genetic information b) To synthesize proteins c) To provide energy for cellular activities d) To regulate cell division

33. Which of the following is not a type of electromagnetic radiation?

a) X-rays b) Gamma rays c) Ultrasound d) Radio waves

34. What is the process by which plants release water vapor into the atmosphere?

a) Condensation b) Transpiration c) Precipitation d) Evaporation

35. Which of the following is a primary function of the circulatory system?

a) To exchange gases (oxygen and carbon dioxide) b) To digest food c) To filter waste materials from the blood d) To regulate body temperature

36. Which of the following is not a greenhouse gas?

a) Carbon dioxide b) Nitrous oxide c) Oxygen d) Methane

37. What is the process by which plants convert carbon dioxide and water into glucose and oxygen using sunlight?

a) Cellular respiration b) Photosynthesis c) Fermentation d) Glycolysis

38. What is the SI unit of force?

a) Joule b) Newton c) Watt d) Pascal

39. What is the chemical symbol for Iron?

a) Ir b) Io c) Fe d) In

40. What type of reaction absorbs more energy than it releases?

a) Exothermic b) Endothermic c) Combustion d) Catalytic

41. Which of the following is the basic unit of life?

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

42. What is the chemical formula for water?

a) H2O2 b) H2O3 c) H2O d) HO2

43. Which of the following is not an example of a renewable energy source?

a) Solar b) Wind c) Coal d) Hydroelectric

44. What is the densest planet in the Solar System?

a) Earth b) Mars c) Venus d) Mercury

45. What is the process by which liquid water changes into vapor?

a) Condensation b) Sublimation c) Evaporation d) Melting

46. What is the Earth's primary source of energy for weather patterns?

a) Wind b) Ocean currents c) Solar radiation d) Geothermal energy

47. Which of the following is a characteristic of acids?

a) They turn blue litmus paper red b) They feel slippery to the touch c) They have a pH above 7 d) They release hydroxide ions (OH-) in solution

48. What is the process by which rocks are broken down into smaller pieces by physical means?

a) Erosion b) Weathering c) Deposition d) Sedimentation

49. What is the primary role of the ozone layer in the Earth's atmosphere?

a) To absorb ultraviolet (UV) radiation from the Sun b) To regulate Earth's climate c) To produce oxygen for respiration d) To trap heat and prevent it from escaping into space

50. What is the study of the Earth's atmosphere and weather called?

a) Biology b) Ecology c) Meteorology d) Geology