12.1. Disease
A subsection of Biology, 5090, through 12. Disease and immunity
Listing 10 of 162 questions
The diagram shows two identical cigarettes before they have been smoked. In one of them, the paper round the filter has been torn away to expose the filter beneath. It also shows a cigarette after it has been smoked, again with its filter exposed. before after filter white in colour filter brown in colour paper torn away to expose filter Tar is the chemical which turns the filter brown in colour. State two harmful effects of tar. Name two other chemicals produced by cigarettes when they are smoked and, for each, state one of its harmful effects. chemical 1. harmful effect chemical 2. harmful effect Describe how these chemicals can pass from a cigarette to the fetus of a pregnant woman.
5090_w20_qp_21
THEORY
2020
Paper 2, Variant 1
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Questions Discovered
162