Respiratory System Quiz

Which of the following is NOT a function of the respiratory system?

• Obtaining oxygen

• Eliminating carbon dioxide

• Regulating blood pH

• Producing red blood cells

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NGSS.HS-LS2-5

NGSS.HS-LS2-3

The respiratory membrane functions as the site of gas exchange in the lungs and is formed where:

• The trachea meets the bronchi

• The bronchioles meet the bronchi

• An alveolus makes contact with a pulmonary capillary

• The pleural membranes meet

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NGSS.HS-LS2-3

Which cell type in the lungs produces surfactant?

• Macrophages

• Septal cells

• Ciliated columnar cells

• Olfactory receptors

The right lung differs from the left lung in that it has:

• 2 lobes instead of 3

• 3 lobes instead of 2

• No pleural membrane

• No secondary bronchi

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NGSS.MS-LS4-2

The trachea is characterized by:

• Complete rings of cartilage

• 16-20 incomplete C-shaped rings of hyaline cartilage

• No cartilage, only smooth muscle

• Square-shaped rings of elastic cartilage

Which structure covers the glottis during swallowing to prevent food from entering the respiratory tract?

• Thyroid cartilage

• Epiglottis

• Tracheal rings

• Visceral pleura

The average number of alveoli in adult human lungs is approximately:

• 274 million

• 380 million

• 480 million

• 790 million

Gas exchange in the lungs occurs by:

• Active transport

• Facilitated diffusion

• Simple diffusion

• Osmosis

Tags

NGSS.HS-LS2-5

What percentage of oxygen in blood is transported by hemoglobin?

• 2%

• 23%

• 70%

• 98%

Carbon dioxide is transported in the blood primarily as:

• Dissolved in plasma (70%)

• Bound to hemoglobin (70%)

• Bicarbonate ions (70%)

• Carbonic acid (70%)