Structure of Human Gas Exchange System

What adaptations does the alveoli have for efficient gas exchange?

• thick walls

• thin walls

• small surface area

The diagram shows the structure of the human gas exchange system. Name organ P.

• alveolus

• trachea

• bronchus

• diaphragm

The diagram shows the structure of the human gas exchange system. Name organ Q.

• alveolus

• trachea

• bronchus

• diaphragm

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

Letter D is pointing to which Respiratory organ?

• Alveoli
• Diaphragm
• Lung
• Bronchi

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

• Bronchi

• Trachea

• Oxygen

• Alveoli

The trachea leads to the...

• Bronchioles
• Bronchi
• Esophagus
• Pulmonary Vessel

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

Which structures filter and moisten air as it passes through the human respiratory system?

• cilia and mucous membranes

• alveoli and cartilage rings

• diaphragm and bronchioles

• epiglottis and bronchi

Which respiratory structure is supported by rings of cartilage?

• trachea

• alveolus

• bronchiole

• pharynx