Biology 9700/21 — October/November 2018
Cambridge AS Level · AS Level Structured Questions · worked solutions for every part, with the mark scheme
Topics Biological Molecules · Cell Structure · Cell Membranes and Transport · Gas Exchange · Infectious Diseases · Enzymes · +5 more
Fig. 1.1 shows the human gas exchange system.
Name the structures labelled A, B, and C in Fig. 1.1.
A ______
B ______
C ______
Name a non-infectious disease that affects the human gas exchange system.
Malaria is an infectious disease.
Name the pathogen that causes malaria.
There are a number of vaccines being developed to help control the spread of malaria.
Explain why vaccination programmes have not been able to eradicate malaria.
Fig. 1.2 shows the distribution of malaria in the Americas in 2012.
Suggest the factors, other than lack of vaccines, that could be restricting the distribution of malaria to area P.
The rest of this paper
5 more questions- Q2Biological Molecules · Cell Membranes and Transport · Enzymes9M
- Q3Biological Molecules · Cell Structure11M
- Q4Cell Structure · The Mitotic Cell Cycle · Cell Membranes and Transport · Immunity11M
- Q5Cell Structure · Transport in Plants · Nucleic Acids and Protein Synthesis9M
- Q6Biological Molecules · Transport in Mammals8M