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.
- How does water and mineral salts reach xylem vessels?
- Why large molecules cannot absorb into blood?
- What is flu?
- What is vein?
- Why are Villi essential?
- Where is blood taken after lungs?