Topic: Food Energy and Respiration Subtopic: Introduction
How is oxygen transported to cells?
Answer: Oxygen is taken in to the the lungs when we breathe. Diffusion takes place within the lungs and oxygen moves from lungs to blood vessels. These blood vessels take oxygen to the cells where required.
Learn also:
- What is passive smoking?
- What is vein?
- What is photosynthesis?
- What are harmful effects of carbon dioxide?
- What makes heart sound like lub?
- What is our body made up of?