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AQA A LEVEL BIOLOGY 2020 PAPER 3 MS $2.91   Add to cart

Exam (elaborations)

AQA A LEVEL BIOLOGY 2020 PAPER 3 MS

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AQA A LEVEL BIOLOGY 2020 PAPER 3 MS

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  • December 12, 2021
  • 27
  • 2021/2022
  • Exam (elaborations)
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AQA A LEVEL BIOLOGY 2020 PAPER 2 QP

, PMT

SPECIMEN MATERIAL




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

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