Q. Glucose and oxygen are required by brain for constant supply of energy to control the functions of our body organs. What will be the consequences if brain is deprived of oxygen and glucose? I. Brain deprived of oxygen for just 5 minutes will get permanently damaged II. Glucose is important in the nerve impulse conduction III. One side of brain is unable to know, what the other side is doing, when it is deprived of oxygen IV. Mental confusion will results if brain is deprived of glucose
A) I and II
B) III and IV
C) I and IV
D) II and IV
Explanation
Brain controls the functions of our body organs and provides the qualities of mind like-learning, reasoning and memory. For such activities, brain needs a large and constant energy supply. Brain account for 20% of the body’s consumption of $O_{2}$ and 5% of its consumption of blood glucose. Brain deprived of $O_{2}$ for just 5 minutes is permanently damaged. Mental confusion results if it is deprived of glucose
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.