1. Introduction to Cellular Respiration

2. Your combustion engine Energy used by living things comes in the form of chemical energy Organisms are ultimately a living chemistry lab, where most of the chemical reactions are designed to produce energy required to power necessary functions for life http://www.metacafe.com/watch/434121/en ergy_of_candy_gummi_bears_vs_m_ms_expe riment/ http://www.metacafe.com/watch/434121/en ergy_of_candy_gummi_bears_vs_m_ms_expe riment/

3. Cellular Respiration You’ve heard the term respiration before and it is usually associated with breathing So what does CELLULAR respiration mean?

4. The well known equation All through junior sciences, you have been introduced to the cellular respiration equation and have seen it linked to photosynthesis before as well You should notice that oxygen plays an important role in this equation

5. Breathing cells Hence, the process by which cells make energy is referred to as CELLULAR respiration

6. Photosynthesis and Cellular Respiration It makes sense when you think about the purposes of the processes – that photosynthesis and cellular respiration are linked

7. Cellular respiration and Photosynthesis – reverse reactions

8. Basic energy source All living things rely on glucose as their primary energy source

9. The use of macromolecules Our body orders the importance of these molecules as energy sources based on the ease of use

10. Are carbs bad?

11. Lipids next Fats are usually the next store of energy to be broken down into glucose after carbohydrate reserves are used up

12. Proteins last Proteins and thus amino acids are usually the last macromolecule to be metabolized

13. We are designed for carbs In fact, the metabolism of proteins and fats on a regular basis for energy leads to acidosis and ketosis – excess acidity in the blood that can lead to respiratory failure

14. Glucose is key Therefore it is important to note that our main source of energy must originate with molecules of glucose

15. ATP Just as different mechanical devices are designed for specific fuels, the cells of organisms are designed to use one specific molecule to harness energy

16. ATP – The body’s gasoline

17. ATP in action http://highered.mcgraw- hill.com/sites/0072495855/student_view0/ch apter10/animation__breakdown_of_atp_and_ cross- bridge_movement_during_muscle_contractio n.html http://highered.mcgraw- hill.com/sites/0072495855/student_view0/ch apter10/animation__breakdown_of_atp_and_ cross- bridge_movement_during_muscle_contractio n.html

18. The breakdown When an organism “eats” and breaks down food, what does it do?

19. The basic equation The equation for cellular respiration reflects this

20. Chemical Processes in the Mitochondria