Biology > AQA Questions and Marking Scheme > AQA_A-level_Biology_Paper_2 2021 (All)
AQA_A-level_Biology_Paper_2 2021
Document Content and Description Below
A-LEVEL BIOLOGY Practice Paper 2 1 A student investigated the rate of anaerobic respiration in yeast. She put 5 g of yeast into a glucose solution and placed this mixture in the apparatus shown in t... he figure below. She then recorded the total volume of gas collected every 10 minutes for 1 hour. (a)Explain why a layer of oil is required in this investigation. (b)The student’s results are shown in the following table (i) Calculate the rate of gas production in cm3 g–1 min–1 during the first 40 minutes of this investigation. Show your working. Answer = ____________________ cm3 g–1 min–1 (2) (ii) Suggest why the rate of gas production decreased between 50 and 60 minutes. [Show More]
Last updated: 1 year ago
Preview 1 out of 16 pages
Also available in bundle (1)
AQA_A_LEVEL_BIOLOGY PAPER 2 QP AND ANSWERS.
AQA_A_LEVEL_BIOLOGY PAPER 2 QP AND ANSWERS.100% VERIFIED AND CORRECTLY ANSWERED.
By QUIZ PRO 1 year ago
$19.5
2
Reviews( 0 )
Document information
Connected school, study & course
About the document
Uploaded On
Jun 20, 2022
Number of pages
16
Written in
Additional information
This document has been written for:
Uploaded
Jun 20, 2022
Downloads
0
Views
133
