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Official Summer 2024 OCR GCSE Biology B Twenty First Century Science J257/04: Depth in Biology (Higher Tier) Merged Question Paper + Mark Scheme$7.99
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OCR
GCSE
Biology B Twenty First Century Science
J257/04: Depth in Biology (Higher Tier)
Merged Question Paper + Mark Scheme
Ace your Mocks!!!
, Oxford Cambridge and RSA
Friday 7 June 2024 – Afternoon
GCSE (9–1) Biology B (Twenty First Century Science)
J257/04 Depth in Biology (Higher Tier)
Time allowed: 1 hour 45 minutes
H
You must have:
* 1 3 7 6 0 3 0 3 1 3 *
• a ruler (cm/mm)
You can use:
• an HB pencil
• a scientific or graphical calculator
* J 2 5 7 0 4 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 90.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 20 pages.
ADVICE
• Read each question carefully before you start your answer.
, 3
1 Aerobic and anaerobic cellular respiration take place in human body cells.
(a) Put one tick (✓) in each row of the table to describe aerobic and anaerobic respiration in animal
cells such as human body cells.
Both Neither
Only Only
aerobic and aerobic nor
aerobic anaerobic
anaerobic anaerobic
Is exothermic
Produces lactic acid
Requires glucose
Requires oxygen
[4]
(b) Complete the sentence about ATP production in respiration.
Use words from the list.
more than less than equal to
The amount of ATP produced per molecule of reactant in aerobic respiration is
........................................... the amount of ATP produced per molecule of reactant in anaerobic
respiration. [1]
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