1. Write out the cellular respiration equation 2. List the four stages of cellul

Question

1. Write out the cellular respiration equation

2. List the four stages of cellular respiration in order

3. Summarize the metabolic pathway of each stage of the process of cellular respiration by answering each of the following

a. Where does each stage occur

b. Does the stage require the presence of oxygen

c. What is the substrate/reactant of each stage

d. What is the product of each stage

e. How many ATPs are produced from each stage

4. Would you expect decreased production of ATP in an individual with impaired ability to transport oxygen in the blood, such as a person with anemia? Why?

Explanation / Answer

1.  The formula for cellular respirationis glucose plus oxygen yields carbon dioxide, water and ATP, written as C6H12O6 + 6O2 --> 6H2O + 6CO2 + ATP.

2.Steps of cellular respiration

3 a

1 Glycolysis

Stage 1 of cellular respiration
Location: cytoplasm

What happens: glucose is broken down into 2 molecules of pyruvate (2 3-carbon compounds)
Reactant: 1Glucose
Products: 2Pyruvates
Produces: 2 ATP, 2 NADH (net)

2

Citric Acid Cycle

Stage 2 of cellular respiration
Location: matrix of mitochondria

What happens: completes breakdown of carbon dioxide, makes small amounts of ATP, provides electrons

3

Oxidative Phosphorylation

Stage 3 of cellular respiration
Location: inner membrane and inner membrane space of mitochondria

What happens: electron transport chain, chemiosmosis; energy from electrons--> produces 32 ATP

4

Pyruvate grooming

Between Glycolysis and Citric acid cycle
Location: mitochondria

What happens: 2Pyruvates are chemically changed into Citric Acid (2Acetyl CoA)

4 yes, with decreased production of ATP AN individual with impaired ability to transport oxygen in the blood. There is no production of RBC cells

Mental status changes – This may range from irritability to gross confusion, delirium, and coma. White blood cell dysfunction, causing worsening of infections. Instability of cell membranes due to low adenosine triphosphate (ATP) levels – This may causerhabdomyolysis with increased CPK, and also hemolytic anemia.

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