Cellular Respiration

Cellular Respiration
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  • Hey Elmo! What is cellular respiration?
  • Glad you asked, Chubby! Let us talk about the word respiration first. Look at the description box below.
  • ATP ENERGY
  • So technically, respiration means breathing. You could have just said that.
  • It is better to explain it in the best way. Let us talk about ATP energy now. Look!
  • Cool! What now?
  • Well, there are 2 stages for cellular respiration. 
  • ATP energy
  • The word respiration means the process in which cells obtain energy from glucose by breaking down simple food molecules. Such as sugar and releasing the stored energy. Respiration means breathing.
  • So your saying sugar is broken down into molecules and releases a tiny amount of energy?
  • Exactly! Now this is stage 2.
  • ATP energy is stored in the glucose. ATP is chemical energy the cell can use.  It is the molecules for your cells to work. ATP is the energy being released.
  • So the second stage leases a BIG amount of energy and molecules are broken down even more?
  • What about the equation?
  • Right!
  • Stage 1: In the cytoplasm, glucose is broken down into smaller molecules; oxygen is NOT involved and only a small amount of energy is released.
  • Ok. So is cellular respiration in humans?
  • So the equation is like the photosynthesis equation?
  • No! It it is close, but not the same.
  • Stage 2: Takes place in the mitochondria, there, molecules are broken down even further by chemical reactions. These chemical reactions require oxygen and release a great deal of ENERGY C02 and H20 are also reused- in most animals, these 2 products leave the body by exhaling.
  • The equation for cellular respiration is C6H1206 + 602 =6 CO2 + 6H20+ energy. C6H1206 is sugar and it comes from food we eat. 602 is oxygen and comes from air or water during respiration.
  • Everyone has cellular respiration!!
  • Thanks Elmo! Now I am sure to pass my test.
  • You are welco-- wait what??
  • Yep!
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