Air and the Respiratory System

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• o break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

What is function of the dome-shaped diaphragm muscle?

• This is where gas exchange happens.

• Air passes through the diaphragm on the way to the lungs.

• It attaches to the lungs and contracts and relaxes to help in breathing.

What is tube that is also known as your wind pipe?

• esophogus
• bronchi
• trachea
• alveoli

What is oxygen needed for?

• energy releasing chemical reactions

• to make glucose

• to take in sunlight

• none of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide

• Pharynx
• Diaphragm
• Alveoli
• Lungs

Caused by inhaling tar in cigarrette smoke

• Bronchitis
• Lung cancer
• Asthma
• Respiratory infections

When gasoline is burned, it releases the gas __________________. 

• carbon dioxide
• oxygen
• nitrogen
• helium

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these does a fire need to burn?

• argon
• carbon dioxide
• nitrogen
• oxygen

_________________ is the most abundant gas in our atmosphere.

• Argon
• Oxygen
• Carbon Dioxide
• Nitrogen

Which gas do plants and animals both take in directly from the air to release energy from their food?

• nitrogen
• oxygen
• carbon dioxide
• argon