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104 Challenging Biology Trivia Questions With Answers

Are you a biology 🧬 buff or just someone who loves a good challenge? Test your knowledge with these 104 challenging trivia questions. From cell biology 🦠 to ecosystems 🌱, we've got a variety of topics that will push your brain to its limits. Are you up for it 💪?

  1. Which part of the plant is responsible for photosynthesis?
  2. What is the basic unit of life?
  3. Which organ in the human body is primarily responsible for detoxifying chemicals?
  4. What molecule carries genetic information?
  5. Which animal is known for being the largest mammal on Earth?
  6. Which process do plants use to convert sunlight into food?
  7. Which blood type is known as the universal donor?
  8. What is the process by which cells divide to form two identical daughter cells?
  9. What is the name of the pigment that gives plants their green color?
  10. What is the primary function of red blood cells?
  11. What is the term for an organism that can make its own food using sunlight?
  12. Which gas is produced as a byproduct of cellular respiration?
  13. Which of the following is NOT a part of the human digestive system?
  14. What type of bond holds the two strands of DNA together?
  15. What is the name of the protein responsible for carrying oxygen in red blood cells?
  16. What is the name of the process by which plants lose water through their leaves?
  17. Which of the following organisms is a type of fungi?
  18. What is the term for a trait that is passed down from parent to offspring?
  19. Which of the following is a type of cell division that results in four non-identical daughter cells?
  20. What is the name of the pigment found in the chloroplasts of plants?
  21. Which organ system is responsible for regulating hormones in the body?
  22. What type of blood vessel carries blood away from the heart?
  23. What is the term for the process of cell division in prokaryotes?
  24. Which part of the human brain is responsible for regulating vital functions like breathing and heartbeat?
  25. Which structure in a plant cell is responsible for photosynthesis?
  26. What is the name of the enzyme that helps break down food in the stomach?
  27. Which of the following is an example of an abiotic factor in an ecosystem?
  28. Which process involves the production of gametes in animals?
  29. Which of the following organisms can regenerate lost body parts?
  30. What is the name of the process by which cells convert glucose into energy?
  31. Which of the following is the largest organ in the human body?
  32. What is the name of the protein that makes up hair, skin, and nails?
  33. Which of the following is NOT a type of muscle tissue?
  34. What type of organism is capable of producing its own food from sunlight?
  35. Which of the following processes involves the movement of water across a semipermeable membrane?
  36. What structure in plant cells stores water and maintains cell shape?
  37. What is the term for an organism that consumes both plant and animal material?
  38. Which of the following best describes the function of platelets in the blood?
  39. Which part of the cell is responsible for generating energy?
  40. Which organ in the human body is responsible for detoxifying chemicals and metabolizing drugs?
  41. Which of the following is the largest species of shark?
  42. Which type of cell division results in two genetically identical daughter cells?
  43. What is the chemical formula for glucose?
  44. What structure in plant cells captures light energy for photosynthesis?
  45. Which of the following is an example of a prokaryotic organism?
  46. What is the name of the process by which plants release oxygen into the atmosphere?
  47. Which of the following is NOT a characteristic of a virus?
  48. What is the function of the ribosomes in a cell?
  49. What is the name of the largest organ inside the human body?
  50. Which type of RNA carries the genetic code from DNA to the ribosome?
  51. Which of the following is responsible for the green color of plants?
  52. Which organ is responsible for producing insulin in the human body?
  53. What is the process by which organisms produce offspring?
  54. What is the term for a group of organisms of the same species living in the same area?
  55. Which of the following is NOT a component of the human skeletal system?
  56. Which type of cell contains a nucleus?
  57. What is the name of the structure that holds the two sister chromatids together during cell division?
  58. Which molecule carries genetic information in cells?
  59. What is the term for the process by which plants lose water vapor through small pores in their leaves?
  60. What is the name of the pigment responsible for absorbing light in the process of photosynthesis?
  61. Which of the following is a function of the lymphatic system?
  62. Which of the following is an example of a warm-blooded animal?
  63. What is the function of the chloroplast in plant cells?
  64. Which part of the brain is responsible for regulating body temperature?
  65. Which of the following organisms is an example of an amphibian?
  66. What is the process called when cells divide to form gametes?
  67. Which vitamin is primarily produced when the skin is exposed to sunlight?
  68. What is the term for the first stage of cellular respiration, which occurs in the cytoplasm?
  69. Which organ is primarily responsible for filtering waste from the blood in humans?
  70. Which of the following is a nitrogenous base found in RNA but not DNA?
  71. What is the name of the largest internal organ in the human body?
  72. What is the term for the process of converting glucose into energy in cells?
  73. Which part of the brain controls memory and learning?
  74. What is the name of the structure that regulates the entry and exit of substances in a cell?
  75. Which of the following is a primary component of the human blood plasma?
  76. Which gas is released as a byproduct of photosynthesis?
  77. Which part of the human brain is responsible for regulating vital functions like heart rate and breathing?
  78. Which hormone is responsible for regulating blood sugar levels in the human body?
  79. Which organ is primarily responsible for the production of bile?
  80. What type of cell division results in two genetically identical daughter cells?
  81. Which of the following is a function of the circulatory system?
  82. What is the process by which a cell converts an mRNA message into a protein?
  83. Which part of the cell is known as the 'powerhouse' because it generates energy?
  84. What type of plant is known for producing seeds that are not enclosed in an ovary?
  85. Which of the following is an example of an autotroph?
  86. What is the name of the process by which plants produce their own food using sunlight?
  87. Which component of the blood is responsible for clotting?
  88. What type of molecule is hemoglobin?
  89. Which structure in plant cells is responsible for photosynthesis?
  90. What is the name of the fluid that circulates in the lymphatic system?
  91. Which organ is responsible for regulating the body's metabolic rate?
  92. What is the name of the process by which bacteria exchange genetic material?
  93. Which of the following is a characteristic of prokaryotic cells?
  94. What is the primary function of the mitochondria?
  95. What is the term for the process by which organisms make copies of themselves?
  96. What type of animal is a starfish?
  97. Which of the following is the main function of red blood cells?
  98. What is the term for the evolutionary process where organisms with advantageous traits are more likely to survive and reproduce?
  99. Which part of the plant cell contains the pigment chlorophyll?
  100. Which group of animals is known for having a backbone?
  101. What is the genetic material found in the nucleus of a cell?
  102. Which of the following is a characteristic of viruses?
  103. What is the main role of the small intestine in digestion?
  104. Which group of organisms is considered the most ancient and can survive extreme conditions?
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