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Cellular Respiration Quiz

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Questions and Answers

What are the 4 cellular respiration steps?

Glycolysis, Pyruvate Oxidation, Citric Acid Cycle, Oxidative Phosphorylation.

What are the reactants of glycolysis?

1 glucose molecule, 4 ADP, 4 Pi, 2 NAD+

What are the products of glycolysis?

4 ATP (2 Net ATP), 2 NADH, 2 Pyruvate

What are the reactants of pyruvate oxidation?

2 CoA-SH, 2 NAD+, 2 Pyruvate Signup and view all the answers

What are the products of pyruvate oxidation?

2 NADH, 2 CO2, 2 H-, 2 Acetyl CoA Signup and view all the answers

What are the reactants of the citric acid cycle?

2 Acetyl CoA Signup and view all the answers

What are the products of the citric acid cycle?

4 carbon dioxide, 6 NADH, 2 FADH (possibly 2 ATP or GTP) Signup and view all the answers

What are the reactants of oxidative phosphorylation?

6 NADH, 2 FADH2, 6 O2, ADP + P Signup and view all the answers

What are the products of oxidative phosphorylation?

26-28 ATP, 4 H2O Signup and view all the answers

What is the overall equation of cellular respiration?

Glucose + Oxygen -> Carbon Dioxide + Water + Adenine Triphosphate Signup and view all the answers

What is the overall balanced equation of cellular respiration?

C6H12O6 + 6O2 -> 6CO2 + 6H2O Signup and view all the answers

Study Notes

Cellular Respiration Steps

Consists of four primary stages: Glycolysis, Pyruvate Oxidation, Citric Acid Cycle, and Oxidative Phosphorylation.

Glycolysis

Reactants include 1 glucose molecule, 4 ADP, 4 inorganic phosphate (Pi), and 2 NAD+.
Produces 4 ATP (with a net gain of 2 ATP), 2 NADH, and 2 pyruvate molecules.

Pyruvate Oxidation

Reactants are 2 CoA-SH, 2 NAD+, and 2 pyruvate.
Results in the formation of 2 NADH, 2 carbon dioxide (CO2), 2 hydrogen ions (H-), and 2 Acetyl CoA.

Citric Acid Cycle (Krebs Cycle)

Uses 2 Acetyl CoA as reactants, converting them to 2 oxaloacetate.
Produces 4 CO2, 6 NADH, 2 FADH2, and potentially 2 ATP or GTP.

Oxidative Phosphorylation

Requires 6 NADH, 2 FADH2, 6 O2, and ADP + P as reactants.
Generates 26-28 ATP and 4 water (H2O) molecules as products.

Overall Cellular Respiration Equation

Simplified equation: Glucose + Oxygen → Carbon Dioxide + Water + Adenosine Triphosphate (ATP).
Balanced chemical equation: C6H12O6 + 6O2 → 6CO2 + 6H2O.

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Description

Test your knowledge on the steps, reactants, and products of cellular respiration. This quiz covers important concepts such as glycolysis, pyruvate oxidation, and the citric acid cycle. Perfect for students studying biology or related fields.