Question

the food material taken in during the process of nutrition is used in the cells to provide energy for various life processes during registration
a)state the various steps involved during aerobic respiration in human cells ,starting from breakdown of glucose in cytoplasm to release of energy in mitochondria
b) why do we suffer from muscle cramps after a vigorous physical exercise?​

Answer 1

A ) a three carbon molecule known as pyruvate is formed due to breakdown of glucose in the cytoplasm then during the respiration this pyruvate is converted into carbon dioxide water and energy in presence of oxygen in mitochondria

B)

In order to release more energy to perform exercise pyruvate is converted into lactic acid in the absence of Oxygen and produced lactic acid as the end product which causes muscle cramps