Glucose reacts with oxygen during a process called cellular respiration, which takes place inside the mitochondria of a cell. Cellular respiration has four stages: glycolysis, the preparatory reaction, the citric acid cycle and the electron transport chain.How is energy released from glucose in cellular respiration?
Cellular respiration is the process by which cells release energy from glucose and change it into a usable form called ATP. ATP is a molecule that provides a small amount of energy to the cell, which provides it fuel to do specific tasks.Is glucose the only substrate for cellular respiration?
Glucose is not the only respiratory substrate . All carbohydrates, lipids and proteins can also be used as respiratory substrates. Many cells in the human body are able to use a range of different respiratory substrates. However, brain cells can only use glucose. Heart muscle preferentially uses fatty acids.