1. 8.3 Cellular Respiration

2. Overview Happens in animals when we breath in Oxygen and eat glucose
Part 1: Glycolysis
Part 2: Krebs cycle & electron transport/ fermentation

3. Overview
In Eukaryotic organisms (Animals and humans) cellular respiration takes place in the cells, specifically in the mitochondria (the powerhouse of the cell)
In prokaryotic organisms (those without mitochondria or nuclei), cellular respiration takes place in the cell membrane.

4. Aerobic v. Anaerobic Requires oxygen Does not require oxygen
Krebs cycle
Electron transport
Does not require oxygen

5. Glycolysis
Glycolysis- the process of breaking down glucose in the cytoplasm to make ATP and a molecule called pyruvate.
2 molecules of ATP (energy) are created for every cycle of glycolysis.
2 molecules of pyruvate are also created for every cycle of glycolysis.

6. Krebs Cycle (Citric Acid Cycle)
Pyruvate carries most of the energy from the broken down glucose.
Pyruvate is broken down and turned into CO2 in the mitochondria.

7. Aerobic v. Anaerobic Requires oxygen Krebs cycle Electron transport
In this step, H2O is made and released in the mitochondria.
In prokaryotes, this happens in the cell membrane.
Does not require oxygen
Fermentation- a process of creating ATP without oxygen.
Lactic acid fermentation- converts pyruvate to lactice acid in the absence of oxygen.
Alcohol fermentation- converts pyruvate to alcohol and CO2 in the absence of oxygen.

8. Cellular respiration- write this whole slide down
Phase 1: glucose is broken down to create ATP and pyruvate through glycolysis
Phase 2: pyruvate is broken down through the krebs cycle in order to release more energy.
Phase 2 part 2: water is released from the electron transport chain in the mitochondria.
Animals take in glucose and oxygen and through 2 phases, change them into CO2 and water.

9. Photosynthesis & Cellular Respiration
Phase 1- light is absorbed and converted to ATP for energy to phase II, oxygen is also released.
Phase II- CO2 is changed to glucose through the calvin cycle.
Through two phases (light reactions and calvin cycle) plants are capable of taking our CO2 along with water, and converting it into glucose and oxygen for us to breath.
Phase 1: glucose is broken down to create ATP and pyruvate through glycolysis
Phase 2: pyruvate is broken down through the krebs cycle in order to release more energy.
Phase 2 part 2: water is released from the electron transport chain in the mitochondria.
Animals take in glucose and oxygen and through 2 phases, change them into CO2 and water.