Krebs cycle

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/krebs-cycle

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary location?Mitochondrial matrix
2. What is the key inputs?Acetyl-CoA, NAD+, FAD, ADP (or GDP)
3. What is the Krebs cycle and why does it matter for our energy?The Krebs cycle is a series of reactions that happens inside the mitochondria. It turns a small fuel called acetyl‑CoA into carbon dioxide and makes special helpers, NADH and FADH₂, that later produce most of the cell’s ATP, the energy currency.
4. Where inside our cells does the Krebs cycle take place?It takes place in the mitochondrial matrix, which is the inner part of the mitochondria, the cell’s power plant.

Aerobic Respiration: Metabolic process that uses oxygen to generate ATP from glucose.
Electron Transport Chain: A series of protein complexes that transfer electrons to generate ATP.
Amphibolic Pathway: A metabolic pathway that functions in both catabolism and anabolism.