Cellular Respiration
Updated: 12/14/2018
Cellular Respiration
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Storyboard Text

  • One day in 1950s UK, a woman named Stacey asked a man named Adolf Krebs why people eat.
  • Ever wonder why we eat? Do we just do it because we're hungry, or is it part of that cell stuff you study?
  • It sure does involve the processes that a cell goes through, lets go on a walk and talk about it.
  • Excited by the question, Krebs went on a rant explaining cellular respiration
  • What do you mean by all the letters? I never took chemistry, so I don't know what those element compounds represent.
  • On the most basic level, as the dog consumes food, a source of C6H12O6 and takes in O2, the dog produced CO2, H2O and ATP. Do you understand so far?
  • Understanding that he may be going too fast, Krebs decided to slow down and give the word explanation for cell respiration
  • Alright, I'll try to make it as simple possible. All living things breath in oxygen, a part of air. All living things use food too, which tends to be glucose. The oxygen and glucose are then react within a body to produce energy in the form of a compound with energy stored in phosphate bonds, carbon dioxide and water.
  • Understanding the equation, but still skeptical, Stacey asked for more information regarding parts of the process
  • Soo... is it just that simple? Does the entire body just turn food into energy, or just part of the body? Are there any steps in between?
  • Eager to show his work, Kreb whipped out a microscope and a cell and prepared them on the table for his guest
  • For your second question, the answer is the mitochondria, the alleged "powerhouse" of the cell. It looks like the circle with squiggly lines through it.
  • Sadly, Stacey had to leave because she had kids to take care of and was starting a career as a biology teacher
  • Thanks for having me, but I'm afraid I can't stay. I will say, however, that your provided great information with the vocab words used, the chemical equations (though I didn't understand the elements) and the word equation! Hope to see you soon!
  • OH! I forgot to mention one thing, cellular respiration, not including fermentation, is aerobic, meaning it uses oxygen as a reactant. Fermentation is anaerobic, and does not need oxygen to occur 
  • Krebs Lab Reception
  • I'm glad you asked. To answer your first question and last question, it is not that simple, there are many parts such as glycolysis, Krebs cycle (named after myself) and fermentation, a process that does not need oxygen
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