Respiratory System

Question 1

What is the difference between respiration (breathing) and cellular respiration? How are these two processes related?

Answer 1

Respiration, commonly known as breathing, is the physical process of inhaling oxygen and exhaling carbon dioxide. It involves the respiratory system, particularly the lungs and airways.

Cellular respiration, on the other hand, is a biochemical process that occurs within cells. It uses oxygen to break down glucose for energy and produces carbon dioxide as a waste product.

These processes are related as breathing provides the oxygen necessary for cellular respiration and removes the carbon dioxide it produces. Without the oxygen supplied by breathing, cellular respiration cannot occur efficiently, impacting energy production in cells.

Question 2

Can you explain the process of gas exchange in the respiratory system and mention specific organs involved?

Answer 2

The process of gas exchange in the respiratory system primarily occurs in the lungs. Air enters the respiratory system through the nose or mouth, travels down the trachea, and then passes through the bronchi into the lungs. Within the lungs, the bronchi branch into smaller tubes called bronchioles, which end in clusters of tiny air sacs called alveoli.

At the alveoli, gas exchange takes place: oxygen from the inhaled air diffuses through the walls of the alveoli and into the surrounding capillaries. Simultaneously, carbon dioxide, a waste product from the body’s cells, diffuses from the blood in the capillaries into the alveoli. This carbon dioxide is then expelled from the body when we exhale. This exchange of gases is crucial for maintaining the oxygen supply for cellular respiration and removing carbon dioxide, a byproduct of this process.

Question 3

How do the respiratory system and the circulatory system work together to ensure the body gets enough oxygen?

Answer 3

The respiratory and circulatory systems work together to ensure the body gets enough oxygen by transporting oxygen from the air to the bloodstream and removing carbon dioxide. The respiratory system takes in oxygen through breathing, which then reaches the alveoli in the lungs. Here, oxygen passes into the blood and carbon dioxide moves from the blood to the lungs to be exhaled. The circulatory system then distributes this oxygen-rich blood to cells throughout the body and carries carbon dioxide back to the lungs for removal.

Question 4

What is the main function of the respiratory system?

Answer 4

The main function of the respiratory system is to exchange gases: it takes in oxygen and expels carbon dioxide.

Question 5

In respiration, what gas is inhaled and what is exhaled?

Answer 5

In respiration, oxygen gas is inhaled and carbon dioxide is exhaled

Question 6

True or False: Respiration refers to the same process as cellular respiration.

Answer 6

False. Respiration and cellular respiration are different processes​

Question 7

Which system is responsible for gas transport by pumping oxygen-rich blood throughout the body?

Answer 7

The circulatory system is responsible for gas transport by pumping oxygen-rich blood throughout the body​

Question 8

What are the tiny grape-like air sacs surrounded by capillaries, where gas exchange occurs?

Answer 8

The alveoli are the tiny grape-like air sacs surrounded by capillaries, where gas exchange occurs​

Question 9

What are some factors that can contribute to respiratory disease?

Answer 9

Factors that can contribute to respiratory disease include viruses and bacteria, air quality, and potentially other environmental and lifestyle factors

Question 10

What is the main muscle involved in breathing?

Answer 10

The diaphragm is the main muscle involved in breathing