Gas Exchange

Besides the mouth, how else can air enter the body from outside?

• Diffusion

• Skin

• Nasal Passage

• Stomach

The gas which we need to survive is called...

• carbon dioxide

• argon

• oxygen

• nitrogen

Tags

NGSS.MS-LS1-6

The gas which the body exhales as waste is called...

• carbon dioxide

• argon

• oxygen

• nitrogen

Tags

NGSS.MS-LS1-2

Which means to take into the lungs to gain oxygen?

• Inhale

• Exhale

• Respire

• Diffuse

Gas exchange is needed to supply _____________ to cells and remove __________________ from cells.

• carbon dioxide; oxygen

• oxygen; food

• oxygen; carbon dioxide

• carbon dioxide; water

Tags

NGSS.MS-LS1-2

__________ are air sacs where gas exchange takes place.

• Bronchi

• Trachea

• Oxygen

• Alveoli

The yellow structures on the right side of this picture represent ________.

• diaphragm

• pharynx

• alveoli

• trachea

Tags

NGSS.MS-LS1-3

Which of the following are features of the alveoli that adapt them to gas exchange? I. Large surface area II. Thin walls III. Dry surfaces

• I and II only

• I only

• II and III

• I, II, and III

The diagram shows some of the structures in a human lung. Where is the carbon dioxide concentration highest?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-3

Letter D in this diagram is

• pharynx

• bronchiole

• trachea

• alveoli