HUMAN NUTRITION

NUTRITION

THE HUMAN BODY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is a function of the respiratory system?
A
to provide the body with carbon dioxide, which reacts with food to produce energy.
B
to provide the body with oxygen, which reacts with food to produce energy.
C
to provide the cells with glucose, which is used as a source of energy.
D
to provide the cells with water, which is used as a source of energy.
Explanation: 

Detailed explanation-1: -The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.

Detailed explanation-2: -The circulatory system, which is made up of the heart and blood vessels, supports the respiratory system by bringing blood to and from the lungs. The circulatory system helps deliver nutrients and oxygen from the lungs to tissues and organs throughout the body.

Detailed explanation-3: -The respiratory system takes up oxygen from the air we breathe and expels the unwanted carbon dioxide. The main organ of the respiratory system is the lungs. Other respiratory organs include the nose, the trachea and the breathing muscles (the diaphragm and the intercostal muscles).

Detailed explanation-4: -Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood. Common problems include allergies, diseases or infections.

There is 1 question to complete.