Cellular Respiration
...is the breakdown of glucose that can happen in:
PLANTS, ANIMALS, & BACTERIA
Big Idea:
Cellular respiration is the opposite or reciprocal of photosynthesis. The reactants for photosynthesis are the products for cellular respiration. Plants can do BOTH photosynthesis and cellular respiration.
Cellular Respiration BREAKS DOWN GLUCOSE (photosynthesis synthesizes (or builds) glucose.
Two big catagories:
Aerobic Respiration - happens in the presence of oxygen
Anaerobic Respiration - happens without oxygen
Special type: Fermentation (anaerobic respiration) that breaks down sugar into an acid, gas, or alcohol.
Includes: Milk into cheese, beer/wine and other alcohols using yeast, & the smell from of old dishes (YUCK!).
In humans we have access to three special processes:
Glycolysis (makes 2 atp) (bacteria can do this too!) ANAEROBIC
Kreb's/Citric Acid Cycle (TCA) (makes 2 atp) (some bacteria can do this) Anaerobic or Aerobic? Arguable, since the Krebb's cycle relies on the electron transport chain which is aerobic
Electron Transport Chain (ETC) which makes a JACKPOT of 34 ATP! (Plants & Animals ONLY!) AEROBIC
Amoeba Sisters Video:
Photosynthesis/ Cell Respiration Song:
Powerpoint and Guided Notes Downloadable below :-)