AQA Biology A-Level Paper 2 Specimen QP

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SPECIMEN MATERIAL




AQA Biology A-Level Paper 2 Specimen QP

A-level
BIOLOGY
(7402/2)
Paper 2

Specimen 2014 Session Time allowed: 2 hours
Materials
For this paper you must have:
 a ruler with millimetre measurements
 a calculator.

Instructions
 Use black ink or black ball-point pen.
 Fill in the boxes at the bottom of this page.
 Answer all questions.

Information
 The marks for questions are shown in brackets.
 The maximum mark for this paper is 91.




Please write clearly, in block capitals, to allow character computer recognition.

Centre number Candidate number

Surname

Forename(s)


Candidate signature

, PMT


2




Answer all questions in the spaces provided.


1 Figure 1 shows the apparatus used for measuring the rate of
oxygen consumption in aerobic respiration by seeds.




0 1
. 1 For the first 10 minutes, the tap attached to tube A was left
open and the syringe from tube B was removed.

Suggest three reasons why the apparatus was left for 10
minutes.
[3 marks]

1



2



3

, PMT


3



0 1 . uggest and explain why the chosen temperature was 20 °C for this
2 S
experiment.
[2 marks]




Question 1 continues on the next page




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