Key Terms
Digestion
Glycolysis
Cellular Respiration
ATP & The Body
100

This term refers to all chemical reactions that sustain life.

What is metabolism?

100

During digestion, carbohydrates break down into this simple sugar.

What is glucose?

100

Glycolysis occurs in this part of the cell.

What is the cytoplasm?

100

This cycle in the mitochondria breaks down acetyl‑CoA and releases CO₂.

What is the krebs cycle?

100

This molecule is the main energy currency of the cell.

What is ATP?

200

This type of reaction breaks down molecules to release energy.

What is catabolism?

200

Proteins are broken down into these building blocks.

What are amino acids?

200

This molecule of sugar is split during glycolysis.

What is glucose?

200

This molecule forms when pyruvate enters the mitochondria.

what is acetyl-CoA?

200

ATP helps these cells send signals throughout the body.

What are nerve cells(neurons)?

300

This organelle is where most ATP is produced.

What is the mitochondria?

300

Digested nutrients are absorbed here before entering the bloodstream.

What is the small intestine?

300

Glycolysis produces how many ATP molecules?

What is 2 ATP?

300

These two electron carriers deliver electrons to the ETC.

What is NADH and FADH2?

300

Total ATP produced from one glucose molecule is approximately this amount.

What is 36-38 ATP?

400

These proteins speed up chemical reactions.

What are enzymes?

400

This process prepares nutrients so they can enter cellular respiration.

What is digestion?

400

Because glycolysis doesn't require oxygen, it is considered this.

What is anaerobic?

400

The electron transport chain is located here.

What is the inner mitochondrial membrane?

400

A disease caused by poor glucose uptake that affects ATP production.

What is diabetes millitues?

500

This word describes maintaining stable internal conditions in the body.

What is homeostasis?

500

Fat molecules break down into these two main components.

What are fatty acids and glycerol?

500

This electron carrier is produced during glycolysis and used later for ATP production.

What is NADH?

500

This enzyme uses a proton gradient to make most of the cell’s ATP.

What is ATP synthase?

500

When the body uses fats too quickly for energy, it creates these acidic molecules.

What are ketones?

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