Cellular Respiration Flashcards

Questions and Answers

What are the reactants for Glycolysis?

C6H12O6, 2NAD+, 2ADP+2P

What are the products for Glycolysis?

2ATP (net gain), 2NADH, 2 Pyruvate

What are the reactants for Anaerobic Respiration?

2 Pyruvate and NADH

What are the products of Anaerobic Respiration in humans?

Lactic Acid and NAD+ Signup and view all the answers

What are the products of Anaerobic Respiration in yeast?

Ethanol Alcohol and NAD+ Signup and view all the answers

What are reactants of Aerobic Respiration?

C6H12O6 and Oxygen Signup and view all the answers

What are the products of Aerobic Respiration?

CO2, H2O and ATP Signup and view all the answers

What are the reactants of the Krebs Cycle?

Acetyl CoA, NAD+, FAD+, ADP+P Signup and view all the answers

What are the products of the Krebs Cycle?

ATP, CO2, FADH2, NADH Signup and view all the answers

What is the name of the Coenzyme that binds with Acetyl Acid?

CoEnzyme A Signup and view all the answers

What molecule is the final electron acceptor in the Electron Transport Chain?

Oxygen Signup and view all the answers

Where does Glycolysis take place?

In the Cytoplasm Signup and view all the answers

Where does the Krebs Cycle take place?

In the Mitochondria Signup and view all the answers

Where does the Electron Transport Chain take place?

In the Inner Mitochondrial Matrix Signup and view all the answers

How many ATP are generated from the E.T.C?

36 ATP Signup and view all the answers

How many times does the Krebs Cycle turn for one molecule of glucose?

Twice Signup and view all the answers

What are NAD+ and FAD?

Coenzymes that carry high energy electrons and hydrogen atoms to the E.T.C. Signup and view all the answers

What is the purpose of the Krebs Cycle?

To break down Pyruvic Acid generating high energy compounds: FADH2, NADH and ATP to be carried to the E.T.C. Signup and view all the answers

How much ATP is produced from the Krebs Cycle?

Two ATP Signup and view all the answers

Name the compound that enters the Krebs Cycle.

Acetyl CoA Signup and view all the answers

Explain where the carbon dioxide comes from.

The carbon molecules breaking down. Signup and view all the answers

What was the significance of Hans Krebs and Fritz Lipmann's findings?

The process of respiration occurs in EVERY cell. They made clear the mechanism of how a cell generates energy from glucose. Signup and view all the answers

How did Krebs contribute to the knowledge of Respiration?

Krebs proved the series of reactions by which glucose is broken down into CO2. Signup and view all the answers

How did Fritz Lipmann contribute?

Lipmann discovered CoEnzyme A which was the last step to a greater understanding of the process of the Krebs Cycle. Signup and view all the answers

What is a Coenzyme?

CoEnzymes 'awaken' an enzyme related to vitamins. Signup and view all the answers

Study Notes

Glycolysis

Reactants: C6H12O6 (glucose), 2 NAD+, 2 ADP + 2 P
Products: 2 ATP (net gain), 2 NADH, 2 Pyruvate (Pyruvic Acid)
Location: Cytoplasm

Anaerobic Respiration

Reactants: 2 Pyruvate and NADH
Products in humans: Lactic Acid and NAD+
Products in yeast: Ethanol Alcohol and NAD+

Aerobic Respiration

Reactants: C6H12O6 (glucose) and Oxygen
Products: CO2, H2O, and ATP
Location of Krebs Cycle: Mitochondria
Location of Electron Transport Chain: Inner Mitochondrial Matrix

Krebs Cycle

Reactants: Acetyl Co.A, NAD+, FAD+, ADP + P
Products: ATP, CO2, FADH2, NADH
Each cycle turns twice per glucose molecule, producing two ATP
Main purpose: Break down Pyruvic Acid, generating high energy compounds for the Electron Transport Chain
Coenzyme involved: CoEnzyme A

Electron Transport Chain (E.T.C)

Final electron acceptor: Oxygen
ATP generation from E.T.C: 36 ATP

Coenzymes

NAD+ and FAD: Coenzymes that transport high energy electrons and hydrogen atoms to the E.T.C
Definition: Coenzymes activate enzymes associated with vitamins

Historical Significance

Contributions of Hans Krebs and Fritz Lipmann: Demonstrated respiration occurs in every cell and elucidated energy generation from glucose.
Krebs' findings: Explained the series of reactions breaking down glucose into CO2.
Lipmann's discovery: Identified CoEnzyme A, enhancing understanding of the Krebs Cycle.

Carbon Dioxide Production

Source: Result from the breakdown of carbon molecules during cellular respiration.

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Description

Test your knowledge of cellular respiration with these flashcards. Explore key concepts including reactants and products for both glycolysis and anaerobic respiration. Perfect for students looking to solidify their understanding of this essential biological process.