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GCSE (9–1) Biology B (Twenty First Century Science)J257/04 Depth in Biology ( Higher Tier) 2022
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GCSE (9–1) Biology B (Twenty First Century Science)J257/04 Depth in Biology ( Higher Tier) 2022
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Oxford Cambridge and RSAH
Friday 26 November 2021 – Morning
GCSE (9–1) Biology B (Twenty First Century Science)
J257/04 Depth in Biology (Higher Tier)
Time allowed: 1 hour 45 minutes
You must have:
* 8 3 4 5 3 5 9 0 2 2 *
• 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.
© OCR 2021 [601/8506/5] OCR is an exempt Charity
DC (CE/CB) 300851/4 Turn over
, 2
Answer all the questions.
1 Substances can move into and out of cells.
(a) The diagram shows an animal cell.
Solution
outside cell
Cell
membrane
Cytoplasm
inside cell
(i) Osmosis is a type of diffusion.
Which type of particles move through the cell membrane by osmosis?
Tick (3) one box.
Particles of all substances
Particles of salt
Particles of sugar
Particles of water
[1]
(ii) What would be the net movement of these particles by osmosis?
Draw one line to join the correct start of the answer to the correct end.
…to where they are
less concentrated.
From where they
are concentrated…
…to where they are
more concentrated.
From where they
are not concentrated…
…to where they have the
same concentration.
[1]
© OCR 2021
, 3
(iii) Explain how the cell’s membrane is able to let some particles move through it but
prevents other particles from doing so.
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...................................................................................................................................... [2]
© OCR 2021 Turn over
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