Inputs of Cellular respiration are <span>Oxygen (6O</span>₂)<span> and Glucose (C</span>₆<span>H</span>₁₂<span>O</span>₆)<span>
Outputs of Cellular respiration are </span><span>Carbon Dioxide, water, ATP or energy
The main purpose of cellular respiration is to produce ATP. It takes place in the mitochondria.
ATP is the energy of the cells so that it can properly functions inside the body.
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The membrane is selectively permeable because substances do not cross it indiscriminately. Some molecules, such as hydrocarbons and oxygen can cross the membrane. Many large molecules (such as glucose and other sugars) cannot. Water can pass through between the lipids.