Exhale

Summary: When you breathe in, you inhale to take in oxygen. The oxygen is used in respiration to transfer Energy. Respiration produces carbon dioxide. This needs to be removed from the body. When you breathe out, you exhale to remove carbon dioxide. Tags: science student-book-7 biology Created: 2026-05-21 Last Updated: 2026-05-21

Exhale

When you breathe in, you inhale to take in oxygen. The oxygen is used in respiration to transfer Energy. Respiration produces carbon dioxide. This needs to be removed from the body. When you breathe out, you exhale to remove carbon dioxide.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Biology/Body Systems/2.6 Breathing - gas exchange.md), Biology section.