1. Respiration

2. Learning Targets
Cell respiration is the controlled release of energy from organic compounds to produce ATP
ATP from cell respiration is immediately available as a source of energy in the cell
Anaerobic cell respiration gives a small yield of ATP from glucose
Aerobic cell respiration requires oxygen and gives a large yield of ATP from glucose

3. What is cellular respiration?
Cellular respiration is the controlled release of energy from organic (carbon containing) compounds to produce ATP

4. ATP (Adenosine Triphosphate)
ATP is often known as the “energy carrier” or “energy currency” of the cell. ATP is a high energy molecule that provides energy for cellular functions. ATP can be used as energy immediately after it is produced.

5. What do cells need energy for?
Cells need energy for three main tasks

6. 1) Synthesizing large molecules like DNA, RNA, and proteins.

7. 2) Pumping molecules or ions across membranes by active transport

8. 3) Moving things around inside the cell, such as chromosomes, vesicles, or in muscle cells the protein fibers that cause muscle contraction.

9. What is respiration?

10. On a molecular level, why do people eat food?

11. Does ATP need to be converted to another molecule before it is used as a source of energy?

12. Anaerobic Respiration
In anaerobic respiration glucose is broken down without using oxygen.
The amount of ATP produced is small, but it can be produced very quickly.
It is most commonly useful when…

13. A short, rapid burst of ATP production is needed

14. Oxygen supplies run out in respiring cells

15. The environment is deficient in oxygen

16. The products of Anaerobic respiration vary depending on the organism
Humans and other animals
Yeast and plants
Ethanol

18. Aerobic Respiration
Aerobic respiration is the breakdown of glucose with oxygen. In aerobic respiration glucose is more completely broken down and produces a LOT more ATP. Glucose + Oxygen Carbon Dioxide + Water ADP to ATP

19. Examples of aerobic respiration

20. Products Reactant Anaerobic Respiration Aerobic Respiration or Ethanol
Carbon Dioxide
Water

21. How many C-H bonds are present in glucose?

22. How many C-H bonds are present in Lactate?

23. How many C-H bonds are present in water and carbon dioxide?

24. Which process would you predict converts more of the high energy C-H bonds in glucose into ATP?

25. Products Reactant Anaerobic Respiration Aerobic Respiration or Ethanol
Carbon Dioxide
Water

26. Which process occurs without oxygen?

27. Which process occurs with oxygen?

28. Which process produces a lot of ATP?

29. Which process produces a little ATP?

30. Do humans use aerobic or anaerobic respiration?

31. Draw an example of aerobic respiration and an example of anaerobic respiration that we have not used so far in class

32. Anaerobic respiration Both aerobic and anaerobic respiration Neither
You discover a new bacterium that lives 3 feet under the layer of topsoil. You name it Bacteria hipsteria because it was so deep underground that no one had heard of it before. Which of the following processes would you expect to find in the bacteria?
Aerobic respiration
Anaerobic respiration
Both aerobic and anaerobic respiration
Neither

33. Why is it you can only sprint for a short distance but you can jog for a long distance?