Cell Metabolism

Case Study: Cell Metabolism

1. a. What is the chemical equation for cellular respiration?

C6H12O6+6O2--(6CO2+6H2O+ATP

b. How many ATP are produced from one molecule of glucose during aerobic respiration?

36 ATP are produced from one molecule of glucose during aerobic respiration

2. Diagram the major stages of the cellular respiration of glucose

a. Note where all ATP, NADH and FADH are produced.

b. Note where CO2 is released and where O2 is used.

c. Note the side pathway for anaerobic metabolism and which waste product is produced by this pathway.

3. Look back at question 2 and consider the following:

a. Which is the most effective mode of metabolism and what does the body require for this?

The most effective mode of metabolism refers to the Kreb Cycle. The body requires Oxygen (O2) for the Kreb Cycle to be used.

b. Why do we need the other mode?

We need the other mode because the mitochondria is unable to keep up with the most effective mode of metabolism (Krebs Cycle) due to the lack of oxygen. Therefore, the system uses another mode of metabolism as a “back up” to produce ATP.

4. Now consider how other compounds (besides glucose) are metabolized.

Add to your diagram in # 2 where fats and proteins enter the system.

a. What waste molecules are produced as by-products to the metabolism of fats?

Ketone bodies are produced as by-products to metabolize fats.

b. How do these waste molecules affect blood pH? Explain how/why?

Ketone Bodies affect blood pH by lowering the pH. This occurs due to the disassociation in solution, thus releasing hydrogen ions

c. What waste molecules are produced as by-products to the metabolism of proteins?

Ammonium, NH4, and carbon dioxide, CO2, are produced as by-products to the metabolism of proteins.

d. What effect would these waste products have on urinary output? Explain How/Why.

Waste products effect the urinary...