Substances Transported in the Blood
Science: Year 5 & 6 National Curriculum, topic 7.1.2
Substances Transported in the Blood
Blood is about 90% water. Blood also contains the following substances:
Glucose and oxygen
- Glucose and oxygen are needed to release energy for cells.
Carbon dioxide
- Carbon dioxide (CO2) is a waste gas produced in muscles.
- Carbon dioxide (CO2) is removed from the body through the lungs.
Other substances
- Other dissolved nutrients, hormones and waste products are transported in the blood.
Test yourself on Substances Transported in the Blood
What substance is a waste gas produced in the muscles?
What substances are present in the blood?