¡Eres una reacción química gigante!

The video explains the process of respiration, a vital chemical reaction that provides energy. It describes how digestion and breathing supply glucose and oxygen, which react in cells to release energy, producing carbon dioxide and water as byproducts. The video also covers how the body excretes these byproducts and the increased energy demand during exercise.

What is the primary purpose of respiration in our bodies?

• To excrete waste

• To absorb nutrients

• To generate energy

• To produce glucose

Which two substances are absorbed into the bloodstream during respiration?

• Vitamins and minerals

• Carbon dioxide and water

• Glucose and oxygen

• Proteins and fats

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

• Oxygen and glucose

• Carbon dioxide and water

• Energy and proteins

• Fats and vitamins

How does the body respond to increased energy demands during exercise?

• By increasing glucose production

• By reducing oxygen intake

• By decreasing water excretion

• By breathing harder to take in more oxygen

What happens to glucose levels after exercise?

• They remain constant

• They are depleted

• They are replenished

• They are converted to proteins