What does nutrition give us?
Nutrition gives us energy and raw materials.
What are the processes involved in nutrition?
Digestion, respiration, circulation and excretion.
What happens during digestion?
During digestion, food turns into nutrients.
What happens during respiration?
During respiration, living things take in oxygen from the air.
What happens during circulation?
During circulation, the blood carries nutrients and oxygen to all the cells in our body.
What happens during excretion?
During excretion, we eliminate waste substances by expelling them outside our body.
What is cellular respiration?
Cellular respiration is when nutrients combine with oxygen to produce energy for the cells.
What does cellular respiration release?
Cellular respiration releases the gas carbon dioxide.