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Write your name here
Surname

Other names

Centre Number

Candidate Number

Edexcel GCSE

Biology/Science
Unit B1: Influences on Life

Higher Tier
Thursday 1 March 2012 – Morning
Time: 1 hour
You must have:
Calculator, ruler

Paper Reference

5BI1H/01
Total Marks

Instructions

se b
ink or
• Uill inlack boxesball-point pen. page with your name,
F
the
a the top of this
• centre number andt candidate number.
nswer all uestions.
• Answer theqquestions in the spaces provided
• A there may be more space than you need.


Information

paper
• The total markefor thisuestion is 60.shown in brackets
ach q
are
• Thesemarks forguide as to how much time to spend on each question. – u this as a
Questions labelled with an sterisk (*)
• written communication willabe assessedare ones where the quality of your – you should take particular care with your spelling, punctuation and grammar, as well as the clarity of expression, on these questions.

Advice

Read
carefully
• Keep each questiontime. before you start to answer it.
• Try toan eye on the question.
• Checkanswer every if you have time at the end.
• your answers

P40196A
©2012 Pearson Education Ltd.

1/1/1/1/

*P40196A0116*

Turn over

Answer ALL questions.
Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . Disease
1 (a) Smoking tobacco is the cause of 9 out of 10 cases of lung cancer. (i)

Complete the sentence by putting a cross ( ) in the box next to your answer. The active compound in cigarette smoke that causes lung cancer is

(1)

A carbon dioxide
B carbon monoxide
C nicotine
D tar
(ii) One part of cigarette smoke acts on receptor sites in the brain.

D
exR
em
A
FT
pl
ar

Explain why it can be very difficult to give up smoking.

(2)

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(b) Smoking cigarettes can have an effect on reaction times.

State the group of drugs which increase the speed of reactions.

(1)

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