HARD
AS and A Level
IMPORTANT
Earn 100

Draw the low power plan diagram of bronchus.

Important Questions on Gas Exchange

HARD
AS and A Level
IMPORTANT
Biology for Cambridge International AS & A Level coursebook 2nd Edition Digital Access>Chapter 9 - Gas Exchange>EXAM-STYLE QUESTIONS>Q 1

The following structures are found in the walls of the gas exchange system.

1 Cilia

2 Elastic fibres

3 Smooth muscle cells

4 Goblet cells

5 Squamous epithelial cells.

Which would be found in the lining of an alveolus.

HARD
AS and A Level
IMPORTANT
Biology for Cambridge International AS & A Level coursebook 2nd Edition Digital Access>Chapter 9 - Gas Exchange>EXAM-STYLE QUESTIONS>Q 2

Cartilage is found in which structure?

HARD
AS and A Level
IMPORTANT
Biology for Cambridge International AS & A Level coursebook 2nd Edition Digital Access>Chapter 9 - Gas Exchange>EXAM-STYLE QUESTIONS>Q 3

Which of the following is not a role of elastic fibres in the gas exchange system?
 

HARD
AS and A Level
IMPORTANT
Biology for Cambridge International AS & A Level coursebook 2nd Edition Digital Access>Chapter 9 - Gas Exchange>EXAM-STYLE QUESTIONS>Q 4

Which of the following best describes the process of gas exchange in the lungs.

HARD
AS and A Level
IMPORTANT
Biology for Cambridge International AS & A Level coursebook 2nd Edition Digital Access>Chapter 9 - Gas Exchange>EXAM-STYLE QUESTIONS>Q 5

The given diagram shows the alveoli: 

Question Image

Name the cell A, B and C.

HARD
AS and A Level
IMPORTANT
Biology for Cambridge International AS & A Level coursebook 2nd Edition Digital Access>Chapter 9 - Gas Exchange>EXAM-STYLE QUESTIONS>Q 5

The given diagram shows the alveoli: 

Question Image

Name the fluid at D.

HARD
AS and A Level
IMPORTANT
Biology for Cambridge International AS & A Level coursebook 2nd Edition Digital Access>Chapter 9 - Gas Exchange>EXAM-STYLE QUESTIONS>Q 5

The given diagram shows the alveoli: 

Question Image

The length of the scale bar is 13mm.
Calculate the actual distance indicated by X-Y; Write out the formula that you will use.

HARD
AS and A Level
IMPORTANT
Biology for Cambridge International AS & A Level coursebook 2nd Edition Digital Access>Chapter 9 - Gas Exchange>EXAM-STYLE QUESTIONS>Q 5

The given diagram shows the alveoli: 

Question Image

The length of the scale bar is 13mm.
Calculate the actual distance indicated by X-Y; Write out the formula that you will use. Use the formula to calculate the actual distance.