Q1. What is the primary function of the lymphatic system? (2022)
Solution:
The lymphatic system is responsible for transporting lymph, a fluid that contains infection-fighting white blood cells, and plays a crucial role in the immune system.
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Q2. Which type of white blood cell is primarily involved in the immune response? (2019)
Solution:
Lymphocytes are a type of white blood cell that plays a key role in the immune response.
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Q3. What is the primary role of white blood cells? (2022)
Solution:
White blood cells are crucial for the immune response, helping to defend the body against infections and foreign invaders.
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Q4. Which of the following is a function of plasma in the blood? (2021)
Solution:
Plasma is the liquid component of blood that carries nutrients, hormones, and waste products throughout the body.
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Q5. Which organ is primarily responsible for filtering blood? (2021)
Solution:
The kidneys filter blood to remove waste products and excess substances, maintaining homeostasis in the body.
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Q6. Which hormone regulates the production of red blood cells? (2019)
Solution:
Erythropoietin is a hormone produced by the kidneys that stimulates the production of red blood cells in the bone marrow.
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Q7. What is the role of the lymphatic system in the human body? (2023)
Solution:
The lymphatic system is responsible for transporting lymph, which contains immune cells, and helps in the removal of waste products from tissues.
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Q8. What is the average volume of blood in an adult human body? (2020)
Solution:
The average volume of blood in an adult human body is approximately 5 to 6 liters.
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Q9. Which of the following is the main component of plasma? (2022)
Solution:
Plasma is composed of approximately 90% water, with proteins, electrolytes, and nutrients making up the remaining 10%.
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Q10. Which blood type is known as the universal donor? (2019)
Solution:
Type O blood is known as the universal donor because it lacks A and B antigens, making it safe for transfusion to any blood type.
