Multiple choice general knowledge science & technology

how much percentage of the total oxygen pumping around your body is utilised by the brain?

  1. 10

  2. 20

  3. 30

  4. 80
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Although the brain represents only about 2% of body weight, it consumes approximately 20% of the body's total oxygen supply due to its high metabolic rate. This disproportionate oxygen usage reflects the brain's intense energy demands for neural signaling and maintaining cellular functions. Options A (10%) is too low, while C (30%) and D (80%) are too high.

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