Alveoli

The movement by diffusion of oxygen and carbon dioxide across a membrane

• Ventilation

• Breathing

• Gas exchange

• Respiration

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

• bronchi

• lungs

• oxygen

• alveoli

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-5

What is the site of gas exchange?

• alveoli

• bronchus

• nose

• trachea

What adaptations does the alveoli have for efficient gas exchange?

• thick walls

• thin walls

• small surface area

Which of the following is the correct order in which air would flow after inhalation?

• 1,2,3

• 2,1,3

• 2,3,1

• 3,2,1

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

• Bronchi

• Trachea

• Oxygen

• Alveoli

Tags

NGSS.HS-LS2-3

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

• air/oxygen

• oxygen/carbon dioxide 

• carbon dioxide/waste 

• waste/air 

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-5

What is the primary function of alveoli in the respiratory system?

• Ventilation

• Gas exchange

• Filtration

• Digestion

Tags

NGSS.HS-LS1-7

Which structural feature of alveoli increases the efficiency of gas exchange?

• Thick walls

• Thin walls

• Small surface area

• Lack of blood supply

How does oxygen move from the alveoli into the blood?

• Active transport

• Osmosis

• Diffusion

• Filtration