Respiratory

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• to bring oxygen to the body

• to break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

When you breathe, your lungs take in ___ and remove ___.

• air/oxygen

• oxygen/carbon dioxide 

• carbon dioxide/waste 

• waste/air 

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi

• lungs

• oxygen

• alveoli

Tags

NGSS.HS-LS2-3

Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries. 

• trachea 

• bronchi 

• alveoli

• diaphragm

Tags

NGSS.HS-LS2-5

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• to bring oxygen to the body

• to break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

Animals exchange ​ (a)   for ​ (b)   through respiratory system

• blood

• hydrogen

• gas

• energy

• oxygen

• carbon dioxide

Tags

NGSS.MS-LS2-1

match the parts of the respiratory system (simplified)

c

b

a

diaphragm

trachea

lungs

What is the function of the bronchi?

• Transport air from nose to lungs

• Transport air from trachea to lungs

• Transport air from lungs to alveoli

• Transport air from alveoli to blood

When the gasses are exchanged between the alveoli in the lungs and the capillaries, oxygen enters the blood stream. What happens with this oxygen?

• Oxygen in the blood is delivered to the lungs to be exhaled.

• Oxygen in the blood is delivered to the nose to be exhaled.

• Oxygen in the blood is delivered to the tissues and cells of the body to help make energy.

• Oxygen in the blood is a waste that needs to be removed from the boyd.

Tags

NGSS.HS-LS1-7

Why does CO2 build up (or increase) inside your lungs when you hold your breath? (Choose the BEST answer.)

• Because the circulatory system is still pumping blood by your lungs.

• Because your lung always have CO2 in them.

• Because the circulatory system is still pumping blood and delivering CO2 to your lungs, even if you don't exhale it.

• Because the circulatory system is still pumping blood and delivering Oxygen to your lungs, oxygen created as waste in cells.