KS3 Breathing and Gas Exchange

What does the trachea lead to?

• Bronchioles

• Bronchi

• Oesophagus

• Pulmonary Vessels

What is the name of the air sacs where gas exchange takes place?

• Bronchi

• Trachea

• Oxygen

• Alveoli

Which label pointing to the diaphram?

• C

• D

• E

• F

When air pressure inside the lungs is less than air pressure in the atmosphere...

• Air moves into the lungs
• Air moves out of the lungs

Which word describes the mechanical movements used to inhale and exhale air?

• Gas Exchange

• Respiration

• Breathing

• Transport

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

• carbon dioxide; oxygen

• oxygen; food

• oxygen; carbon dioxide

• carbon dioxide; water

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3

Which word describes the movement, by diffusion, of oxygen and carbon dioxide across a membrane?

• Ventilation

• Breathing

• Gas exchange

• Respiration

Which statement describes respiration?

• Intake of oxygen and release of carbon dioxide over a membrane

• Release of energy from food inside cells

• Mechanical movement to inhale and exhale air

• Feature that enable an animal to survive in its habitat

Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area
II. Thin walls
III. Dry surfaces

• I and II only
• I only
• II and III
• I, II, and III

What is the main function of the respiratory system?

• To break food down
• Circulate the blood
• Supply the blood with oxygen