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Centre Number Candidate Number For Examiner's Use


Surname

Other Names
Examiner's Initials
Candidate Signature

Question Mark

General Certificate of Secondary Education 1
Higher Tier
June 2012 2

3
Science A BL1HP 4




H
Unit Biology B1
5

Biology 6

Unit Biology B1 7

8
Tuesday 12 June 2012 9.00 am…

Page 2

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2 Do not write
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Answer all questions in the spaces provided.



1 Scientists at a drug company developed a new pain-killing drug, drug X.

1 (a) Painkillers do not cure infectious diseases.

Why?

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(1 mark)

1 (b) The scientists compared drug X with two other pain-killing…

Page 3

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1 (c) (i) How much pain did the volunteers still feel, four hours after taking drug A?

............................................................ percent
(1 mark)

1 (c) (ii) Give one advantage of taking drug A and not drug B.

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(1 mark)

1 (c) (iii) Give…

Page 4

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2 The diagram shows part of a carbon cycle in a habitat.



Atmosphere
Y
Fossil fuels
X
Algae

Microorganisms



Animals




2 (a) Name the processes shown by arrows X and Y.

X .....................................................................

Y .....................................................................
(2 marks)

2 (b) Describe the part played…

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3 In this question you will be assessed on using good English, organising information
clearly and using specialist terms where appropriate.

Plants and animals have become adapted in many different ways to reduce the risk of
being eaten by predators.

Describe these adaptations.…

Page 6

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4 Charles Darwin investigated tropisms in plants.

Some students did an investigation similar to Darwin's investigation.

The students:
grew seeds until short shoots had grown
used black plastic to cover parts of some of the shoots
put the shoots in light coming from…

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4 (b) Shoot A bent towards the light as it grew.

Explain how.

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(4 marks)

4 (c) What conclusions can be drawn from the results about:

4 (c) (i) the detection of the light stimulus…

Page 8

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There are no questions printed on this page




DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED




(08)
G/K83139/Jun12/BL1HP

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5 People may be immunised against diseases using vaccines.

5 (a) (i) Which part of the vaccine stimulates the body's defence system?

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(2 marks)

5 (a) (ii) A person has been vaccinated against measles. The person comes in contact…

Page 10

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5 (b) A man catches a disease. The man has not been immunised against this disease.
A doctor gives the man a course of antibiotics.

The graph shows how the number of live disease bacteria in the body changes when
the man is…

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