Biology 9700/22 — October/November 2011
Cambridge AS Level · AS Level Structured Questions · worked solutions for every part, with the mark scheme
Topics Gas Exchange · Infectious Diseases · Cell Structure · Transport in Mammals · Immunity · Cell Membranes and Transport · +4 more
Fig. 1.1 is a scanning electron micrograph of part of the wall of the bronchus of a healthy human.
Name the structures labelled A.
State the function of the cells labelled B.
Name two tissues found in the wall of the bronchus that are not visible in Fig. 1.1.
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Chronic bronchitis is one of the conditions that contributes to chronic obstructive pulmonary disease (COPD).
State the name of the other condition that contributes to COPD.
Describe the appearance of a section through the wall of a bronchus in a person with chronic bronchitis.
Suggest why a person with chronic bronchitis is more likely than a healthy person to suffer from infectious diseases of the gas exchange system.
The rest of this paper
5 more questions- Q2Immunity · Infectious Diseases13M
- Q3Cell Membranes and Transport · Cell Structure · (outdated) Ecology12M
- Q4Biological Molecules · Nucleic Acids and Protein Synthesis12M
- Q5Gas Exchange5M
- Q6Cell Structure · Transport in Plants7M