Biology in Daily Life MCQs in Everyday Science

By: Prof. Dr. Fazal Rehman | Last updated: May 15, 2025

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1. : What is the primary function of red blood cells in the human body?





2. : Which vitamin is essential for maintaining healthy vision?





3. : What is the basic unit of life in all living organisms?





4. : Which organ is responsible for filtering waste from the blood in the human body?





5. : What type of macronutrient is primarily used by the body for energy?





6. : Which hormone regulates blood sugar levels in the human body?





7. : What is the main structural component of plant cell walls?





8. : Which process in plants converts sunlight into chemical energy?





9. : Which blood group is known as the universal donor?





10. : Which part of the brain is responsible for controlling voluntary muscle movements?





11. : What is the primary function of white blood cells?





12. : Which organ in the human body produces bile?





13. : Which type of fat is considered healthy and is found in foods like avocados and olive oil?





14. : What is the main function of hemoglobin in the blood?





15. : Which vitamin is essential for the absorption of calcium in the body?





16. : What is the primary function of the digestive system?





17. : Which enzyme is responsible for breaking down starch into sugar in the human body?





18. : What is the main purpose of the human immune system?





19. : Which vitamin is crucial for blood clotting?





20. : What is the process by which plants lose water vapor through their leaves?





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