Oxford Cambridge and RSA
Friday 10 May 2024 – Morning
GCSE (9–1) Combined Science B
(Twenty First Century Science)
J260/05 Biology (Higher Tier)
Time allowed: 1 hour 45 minutes
H
* 1 3 7 8 7 6 7 4 1 0 *
You must have:
• a ruler (cm/mm)
You can use:
• a scientific or graphical calculator
• an HB pencil
* J 2 6 0 0 5 *
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 95.
• 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 28 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2024 [601/8690/2] OCR is an exempt Charity
DC (DE/CT) 343563/5 Turn over
, 2
1 Charlie knows that hormones are important in human reproduction.
(a) Describe one role of hormones in human reproduction.
..................................................................................................................................................... [1]
(b)
(i) The diagram shows four stages in the menstrual cycle.
Stage 1
Menstruation
Stage 4 Stage 2
Ovum dies if not fertilised Uterus lining thickens
Stage 3
Ovulation
Charlie has a contraceptive implant under their skin. The implant releases hormones.
Complete the sentence to explain why the hormones released by the implant disrupt the
menstrual cycle.
Put a ring around the correct option.
The hormones prevent stage / from taking place. [1]
© OCR 2024
, 3
(ii) A clinical trial compared the contraceptive implant with a condom.
The trial compared:
• the risk of becoming pregnant
• the risk of catching a sexually transmitted disease.
12
10
8
Risk (%) 6
4
2
0
Risk of becoming Risk of catching a sexually
pregnant transmitted disease
Key
Contraceptive implant Condom
Charlie looks at the chart and decides to use a condom instead of the contraceptive implant.
Evaluate Charlie’s decision, using the information from the chart.
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..................................................................................................................................................... [2]
(iii) Suggest why the risk of becoming pregnant and the risk of catching a sexually transmitted
disease are equal when using a condom.
..........................................................................................................................................................
..................................................................................................................................................... [1]
© OCR 2024 Turn over
, 4
BLANK PAGE
PLEASE DO NOT WRITE ON THIS PAGE
© OCR 2024
Friday 10 May 2024 – Morning
GCSE (9–1) Combined Science B
(Twenty First Century Science)
J260/05 Biology (Higher Tier)
Time allowed: 1 hour 45 minutes
H
* 1 3 7 8 7 6 7 4 1 0 *
You must have:
• a ruler (cm/mm)
You can use:
• a scientific or graphical calculator
• an HB pencil
* J 2 6 0 0 5 *
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 95.
• 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 28 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2024 [601/8690/2] OCR is an exempt Charity
DC (DE/CT) 343563/5 Turn over
, 2
1 Charlie knows that hormones are important in human reproduction.
(a) Describe one role of hormones in human reproduction.
..................................................................................................................................................... [1]
(b)
(i) The diagram shows four stages in the menstrual cycle.
Stage 1
Menstruation
Stage 4 Stage 2
Ovum dies if not fertilised Uterus lining thickens
Stage 3
Ovulation
Charlie has a contraceptive implant under their skin. The implant releases hormones.
Complete the sentence to explain why the hormones released by the implant disrupt the
menstrual cycle.
Put a ring around the correct option.
The hormones prevent stage / from taking place. [1]
© OCR 2024
, 3
(ii) A clinical trial compared the contraceptive implant with a condom.
The trial compared:
• the risk of becoming pregnant
• the risk of catching a sexually transmitted disease.
12
10
8
Risk (%) 6
4
2
0
Risk of becoming Risk of catching a sexually
pregnant transmitted disease
Key
Contraceptive implant Condom
Charlie looks at the chart and decides to use a condom instead of the contraceptive implant.
Evaluate Charlie’s decision, using the information from the chart.
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..................................................................................................................................................... [2]
(iii) Suggest why the risk of becoming pregnant and the risk of catching a sexually transmitted
disease are equal when using a condom.
..........................................................................................................................................................
..................................................................................................................................................... [1]
© OCR 2024 Turn over
, 4
BLANK PAGE
PLEASE DO NOT WRITE ON THIS PAGE
© OCR 2024
