You are one big chemical reaction

The video explains the process of respiration, a vital chemical reaction that provides energy to our bodies. It describes how digestion and breathing supply glucose and oxygen, which react in cells to release energy, carbon dioxide, and water. The video also covers how our bodies excrete byproducts and manage energy during exercise.

What is the primary purpose of respiration in our bodies?

• To circulate blood

• To generate energy

• To absorb nutrients

• To produce carbon dioxide

Which sugar is absorbed into the bloodstream during digestion?

• Glucose

• Lactose

• Fructose

• Sucrose

Where does the oxygen absorbed by the lungs go?

• Into the kidneys

• Into the liver

• Into the bloodstream

• Into the stomach

What are the byproducts of the reaction between glucose and oxygen in cells?

• Carbon dioxide and water

• Oxygen and glucose

• Nitrogen and water

• Carbon monoxide and glucose

Why do we need to breathe harder during exercise?

• To reduce glucose levels

• To take in more oxygen

• To increase blood flow

• To cool down the body