9700/22

Biology 9700/22October/November 2014

Cambridge AS Level · AS Level Structured Questions · worked solutions for every part, with the mark scheme

6
questions
60
marks
75
minutes

Topics Transport in Plants · Transport in Mammals · Gas Exchange · (outdated) Ecology · Cell Membranes and Transport · Nucleic Acids and Protein Synthesis · +6 more

Q1Gas ExchangeFree sample

Fig. 1.1 is a light micrograph of a section through part of the gas exchange system.

A, B and C are three different types of tissue.

Fig. 1.1

(a)

The cell types in tissue A have different functions.

Describe how the cell types work together to maintain the health of the gas exchange system.

3M
(b)

Suggest why the cells in tissue B have many mitochondria.

1M
(c)

Name the parts of the gas exchange system where tissue C is distributed.

1M

The rest of this paper

5 more questions
  • Q2(outdated) Ecology · Transport in Plants · Cell Membranes and Transport · Nucleic Acids and Protein Synthesis13M
  • Q3Transport in Mammals · Biological Molecules · Enzymes16M
  • Q4Infectious Diseases · Immunity12M
  • Q5Transport in Mammals7M
  • Q6The Mitotic Cell Cycle · Transport in Plants · Cell Structure7M
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