N5 2.7 - Absorption of Materials

What is the site of gas exchange in the lungs?

• Trachea

• Bronchus

• Bronchiole

• Alveoli

What gas is passed from the alveoli to the blood?

• Oxygen

• Carbon Dioxide

What gas is passed from the blood to the alveoli?

• Oxygen

• Carbon Dioxide

Which of these is not a specialised function of the alveoli?

• Thin lining of walls

• Large surface area

• High temperatures

• Good blood supply

In the villi, what is absorbed through the blood capillaries?

• Fatty Acids and Glycerol

• Amino Acids and Glucose

• Amino Acids and Glucose

• Fatty Acids and Glucose

In the villi, what is absorbed through the lacteal?

• Fatty Acids and Glycerol

• Amino Acids and Glucose

• Amino Acids and Glucose

• Fatty Acids and Glucose

What structures do the villi and the alveoli both have in common?

• Thin walls and a Lacteal

• Blood capillaries and oxygen supply

• Blood capillaries and thin walls

• Lacteal and blood capillaries

• A

• B

• C

• D