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Q51
(CGS/2026)
Science & Technology › Basic Science (Physics, Chemistry, Biology)
Which of the following white blood cells (WBCs) are found in the highest number in human blood?
Result
Your answer:
—
·
Correct:
D
Explanation
White blood cells (WBCs), also known as leukocytes, are an essential part of the immune system. In a healthy human adult, Neutrophils are the most abundant type of WBC, typically making up about 40% to 75% of the total leukocyte count. They serve as the primary "first responders" to bacterial infections and tissue damage through a process called phagocytosis.
The relative abundance of the five main types of WBCs in descending order is as follows:
- Neutrophils: 40%–75%
- Lymphocytes: 20%–45%
- Monocytes: 2%–10%
- Eosinophils: 1%–6%
- Basophils: 0.5%–1% (Least abundant)
A common mnemonic to remember this order from most to least abundant is "Never Let Monkeys Eat Bananas".
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