Question

Brain depends on blood for the supply of

• A. $ATP$ and glucose
• B. oxygen and $ATP$
• C. oxygen and glucose
• D. oxygen and electrolytes

Answer 1

Answer: (C)

oxygen and glucose

Answer 2

Brain performs a number of activities like it controls the functions of our organs and also provides qualities of learning, reasoning and memory. For all the activities, brain needs a large and constant supply of energy. The brain accounts for $20\%$ of body's consumption of oxygen and $15\%$ of consumption of blood glucose. If brain is deprived of oxygen for just $5$ minutes, it becomes permanently damaged. Mental confusion occurs if brain is deprived of glucose