Practice Krebs Cycle (Citric Acid Cycle) - 8.2.3 | Metabolism, Cell Respiration, and Photosynthesis | IB 12 Biology
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Krebs Cycle (Citric Acid Cycle)

8.2.3 - Krebs Cycle (Citric Acid Cycle)

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What molecule combines with acetyl-CoA in the Krebs Cycle?

💡 Hint: This molecule is four carbons long.

Question 2 Easy

What is produced as a waste product of the Krebs Cycle?

💡 Hint: Think about what we breathe out.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the first product formed when acetyl-CoA enters the Krebs Cycle?

ATP
Lactate
Citrate

💡 Hint: Look for the molecule created from two reactants.

Question 2

The Krebs Cycle produces a net of how many ATP per acetyl-CoA?

True
False

💡 Hint: Think about the outputs from each turn of the cycle.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Analyze the role of the Krebs Cycle in aerobic versus anaerobic respiration.

💡 Hint: Consider how energy is produced in the presence or absence of oxygen.

Challenge 2 Hard

Evaluate the significance of the intermediates generated in the Krebs Cycle for biosynthetic pathways.

💡 Hint: Think about how different macromolecules are built from basic units.

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