Topic: Food Energy and Respiration Subtopic: Introduction
What happens if sufficient oxygen is not present?
Answer: An example of insufficient amount of oxygen is a running race. In running race, our body cannot get enough oxygen for the movement of our muscles, so the body gets that energy by breaking down glucose in the absence of oxygen, this produces lactic acid which makes us tired.
- What is job of heart?
- After chewing where does food go?
- What is food poisoning?
- How long is digestive tract?
- What is activation energy?
- What is oxygenated blood?