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Citric Acid Cycle Worksheet

Explore the key stages and products of the Citric Acid Cycle, also known as the Krebs Cycle, a fundamental process in cellular respiration.

Grade 9 Science BiologyCitric Acid Cycle
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Includes

Multiple ChoiceFill in the BlanksShort AnswerTrue / FalseMatching

Standards

HS-LS1-7

Topics

ScienceBiologyCitric Acid CycleKrebs CycleCellular Respiration
7 sections · Free to use · Printable
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Citric Acid Cycle

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Read each question carefully and answer to the best of your ability. This worksheet covers the Citric Acid Cycle, also known as the Krebs Cycle, a vital part of cellular respiration.

1. Where in the eukaryotic cell does the Citric Acid Cycle primarily occur?

a

Cytoplasm

b

Inner mitochondrial membrane

c

Mitochondrial matrix

d

Nucleus

2. What molecule enters the Citric Acid Cycle?

a

Glucose

b

Pyruvate

c

Acetyl-CoA

d

ATP

3. The Citric Acid Cycle is also known as the   cycle.

4. For each molecule of acetyl-CoA that enters the cycle,   molecules of CO2 are released.

5. Briefly explain the main purpose of the Citric Acid Cycle in cellular respiration.

6. The Citric Acid Cycle directly produces a large amount of ATP.

T

True

F

False

Match each molecule with its role in the Citric Acid Cycle.

7. Oxaloacetate

 

a. Starting molecule that combines with acetyl-CoA

8. Citrate

 

b. First product formed in the cycle

9. NADH/FADH2

 

c. Electron carriers produced during the cycle