20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
2025 OCR GCSE Biology B (Twenty First Century Science)
J257/02 Depth in Biology (Foundation Tier)
Complete Question paper with Marking Scheme Combined
Monday 9 June 2025 – Morning
GCSE (9–1) Biology B (Twenty First Century Science)
J257/02 Depth in Biology (Foundation Tier)
Time allowed: 1 hour 45 minutes
You must have:
• a ruler (cm/mm)
You can use:
• a scientific or graphical calculator
• an HB pen
F
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 page 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 24 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/8506/5] OCR is an exempt Charity
DC (PQ/CT) 355036/7 Turn over
20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
,20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
2
1
(a) Which system transports oxygen and dissolved food molecules around the human body in
the blood?
Tick (✓) one box.
Circulatory system
Digestive system
Excretory system
Gaseous exchange system
[1]
(b) Which organ pumps blood around the human body?
Tick (✓) one box.
Brain
Eye
Heart
Kidney
[1]
(c) Which type of blood vessel has valves to stop blood flowing backwards?
Tick (✓) one box.
Artery
Capillary
Neuron
Vein
[1]
© OCR 2025
20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
,20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
3
(d) Draw lines to connect each part of the blood with its correct function.
Part Function
Plasma Destroy pathogens
Platelets Help seal wounds
Red blood cells Transport dissolved food molecules
White blood cells Transport oxygen
[3]
© OCR 2025 Turn over
20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
, 20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
4
2
(a) Put these three structures in order of size, from the largest to the smallest.
Chromosome Gene Nucleotide
Largest ...............................................
...............................................
Smallest ...............................................
[2]
(b) Which statement describes the genome?
Tick (✓) one box.
A section of DNA that stores the instructions to make a protein.
All the physical features of an organism.
The combination of alleles that an organism has.
The entire genetic material of an organism.
[1]
(c) Draw lines to connect each description with the correct number.
Description Number
1
The number of bases in each nucleotide.
2
The number of different nucleotides found in DNA. 3
4
The number of nucleotide strands in a DNA molecule.
5
[3]
© OCR 2025
20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
2025 OCR GCSE Biology B (Twenty First Century Science)
J257/02 Depth in Biology (Foundation Tier)
Complete Question paper with Marking Scheme Combined
Monday 9 June 2025 – Morning
GCSE (9–1) Biology B (Twenty First Century Science)
J257/02 Depth in Biology (Foundation Tier)
Time allowed: 1 hour 45 minutes
You must have:
• a ruler (cm/mm)
You can use:
• a scientific or graphical calculator
• an HB pen
F
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 page 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 24 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/8506/5] OCR is an exempt Charity
DC (PQ/CT) 355036/7 Turn over
20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
,20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
2
1
(a) Which system transports oxygen and dissolved food molecules around the human body in
the blood?
Tick (✓) one box.
Circulatory system
Digestive system
Excretory system
Gaseous exchange system
[1]
(b) Which organ pumps blood around the human body?
Tick (✓) one box.
Brain
Eye
Heart
Kidney
[1]
(c) Which type of blood vessel has valves to stop blood flowing backwards?
Tick (✓) one box.
Artery
Capillary
Neuron
Vein
[1]
© OCR 2025
20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
,20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
3
(d) Draw lines to connect each part of the blood with its correct function.
Part Function
Plasma Destroy pathogens
Platelets Help seal wounds
Red blood cells Transport dissolved food molecules
White blood cells Transport oxygen
[3]
© OCR 2025 Turn over
20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
, 20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
4
2
(a) Put these three structures in order of size, from the largest to the smallest.
Chromosome Gene Nucleotide
Largest ...............................................
...............................................
Smallest ...............................................
[2]
(b) Which statement describes the genome?
Tick (✓) one box.
A section of DNA that stores the instructions to make a protein.
All the physical features of an organism.
The combination of alleles that an organism has.
The entire genetic material of an organism.
[1]
(c) Draw lines to connect each description with the correct number.
Description Number
1
The number of bases in each nucleotide.
2
The number of different nucleotides found in DNA. 3
4
The number of nucleotide strands in a DNA molecule.
5
[3]
© OCR 2025
20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx20251202204326_692f4f6e55f60_ngcr__71_.docx
