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Title: OCR 2024 GCSE Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) With Marking Scheme Merged
Description: OCR 2024 GCSE Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) With Marking Scheme Merged COMBINED SCIENCE A Oxford Cambridge and RSA Friday 7 June 2024 – Afternoon GCSE (9–1) Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) Time allowed: 1 hour 10 minutes You must have: H • a ruler (cm/mm) You can use: • a scientific or graphical calculator • an HB pencil * J 2 5 0 0 8 * Please write clearly in black ink. Do not write in the barcodes. Centre number First name(s) Last name INSTRUCTIONS Candidate number • 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 60. • 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. 2 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 Gardeners are changing the way they care for their garden. Which change would increase biodiversity? A Adding chemical fertilisers to a grass lawn B Cutting a grass lawn more often than usual C Removing a grass lawn area and putting down paving stones D Replacing a grass lawn area with a wild flower meadow Your answer [1] 2 Which row is a correct comparison of meiosis and mitosis? Involves cell Halves the number Requires DNA division of chromosomes replication A both meiosis only both B both both both C meiosis only both mitosis only D mitosis only meiosis only mitosis only Your answer
Description: OCR 2024 GCSE Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) With Marking Scheme Merged COMBINED SCIENCE A Oxford Cambridge and RSA Friday 7 June 2024 – Afternoon GCSE (9–1) Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) Time allowed: 1 hour 10 minutes You must have: H • a ruler (cm/mm) You can use: • a scientific or graphical calculator • an HB pencil * J 2 5 0 0 8 * Please write clearly in black ink. Do not write in the barcodes. Centre number First name(s) Last name INSTRUCTIONS Candidate number • 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 60. • 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. 2 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 Gardeners are changing the way they care for their garden. Which change would increase biodiversity? A Adding chemical fertilisers to a grass lawn B Cutting a grass lawn more often than usual C Removing a grass lawn area and putting down paving stones D Replacing a grass lawn area with a wild flower meadow Your answer [1] 2 Which row is a correct comparison of meiosis and mitosis? Involves cell Halves the number Requires DNA division of chromosomes replication A both meiosis only both B both both both C meiosis only both mitosis only D mitosis only meiosis only mitosis only Your answer
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COMBINED SCIENCE A
OCR 2024
GCSE Combined Science A
(Gateway Science)
J250/08 Biology (Higher Tier)
With Marking Scheme Merged
Oxford Cambridge and RSA
Friday 7 June 2024 – Afternoon
GCSE (9–1) Combined Science A
(Gateway Science)
J250/08 Biology (Higher Tier)
Time allowed: 1 hour 10 minutes
H
You must have:
• a ruler (cm/mm)
You can use:
• a scientific or graphical calculator
• an HB pencil
*
J
2
5
0
0
8
*
Please write clearly in black ink
...
Centre number
Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink
...
• Write your answer to each question in the space provided
...
The question numbers must be clearly shown
...
• Where appropriate, your answer should be supported with working
...
INFORMATION
• The total mark for this paper is 60
...
• Quality of extended response will be assessed in questions marked with an asterisk (*)
...
ADVICE
• Read each question carefully before you start your answer
...
Write your answer to each question in the box provided
...
Which change would increase biodiversity?
A Adding chemical fertilisers to a grass lawn B
Cutting a grass lawn more often than usual
C Removing a grass lawn area and putting down paving stones D
Replacing a grass lawn area with a wild flower meadow
Your answer
2
[1]
Which row is a correct comparison of meiosis and mitosis?
Involves cell
division
Halves the number
of chromosomes
Requires DNA
replication
A
both
meiosis only
both
B
both
both
both
C
meiosis only
both
mitosis only
D
mitosis only
meiosis only
mitosis only
Your answer
© OCR 2024
[1]
3
3
Which statement describes a difference between red blood cells and white blood cells?
A Red blood cells contain enzymes
...
C
White blood cells contain proteins
...
Your answer
4
[1]
Which disease may develop due to an interaction with HPV?
A AIDS
B Cervical cancer C
Tuberculosis D Type
2 diabetes
Your answer
5
[1]
Why does a plant scientist use antibodies specific to a type of antigen?
A To develop new plants using selective breeding
B To find new species of plants growing around the world
C To identify communicable diseases in plants
D To study the evolution of plants
Your answer
© OCR 2024
[1]
Turn over
4
6
Which row shows the correct order of some processes in the water cycle?
A
Condensation
evaporation
precipitation
condensation
B
Condensation
precipitation
evaporation
condensation
C
Precipitation
condensation
evaporation
precipitation
D
Precipitation
evaporation
condensation
evaporation
Your answer
7
[1]
The diagram shows a phylogenetic tree for a group of related
animals
...
B
Animal X is a common ancestor to all the hyenas
...
D
The closest relation to the striped hyena is the spotted hyena
...
Pathogen growing
on agar plate
Clear zone where
pathogen does not
grow
Paper disc
containing
new drug
The area of the clear zone is used to indicate the effectiveness of the drug
...
4 cm
...
14
A
2
37
...
36 mm
C
2
452
...
64 mm
2
Your answer
9
[1]
Which row shows how a high cholesterol diet is linked to cardiovascular disease?
Coronary vessel blocked
by cholesterol
Gas unable to be transported
to cardiac muscle, damaging
the heart
A
artery
carbon dioxide
B
artery
oxygen
C
vein
carbon dioxide
D
vein
oxygen
Your answer
© OCR 2024
[1]
Turn over
6
10
To function correctly, the brain needs to make a chemical called dopamine
...
Embryonic stem cells might be used to treat Parkinson’s disease
...
B The embryonic stem cells may not produce the correct type of dopamine
...
D
The embryonic stem cells will not have the same genome as the patient
...
(a) In an investigation, scientists estimated the population of flying insects in a forest
...
The mass of insects collected each month is then recorded
...
The table shows their results
...
Both years should be included on the same grid
...
May
June
July
Month
Aug
Sept
[4]
© OCR 2024
9
(ii) What two conclusions can be made about the mass of flying insects in 1995 compared to 2015?
1
...
2
...
[2]
(iii) How can the scientists’ method be developed to investigate biodiversity in the
forest? Tick (3) one box
...
Record the number of different species found in the nets
...
Use their data to calculate mean mass for each year
...
The scientists trap insects using a pitfall trap
...
For each estimate they use this method:
•
•
•
•
Place pitfall traps in different areas of the forest
...
Mark the insects
...
A week later they trap a second sample of insects
...
State one other precaution that they should take when deciding how to mark the insects
...
...
This table shows the results
of this investigation
Title: OCR 2024 GCSE Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) With Marking Scheme Merged
Description: OCR 2024 GCSE Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) With Marking Scheme Merged COMBINED SCIENCE A Oxford Cambridge and RSA Friday 7 June 2024 – Afternoon GCSE (9–1) Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) Time allowed: 1 hour 10 minutes You must have: H • a ruler (cm/mm) You can use: • a scientific or graphical calculator • an HB pencil * J 2 5 0 0 8 * Please write clearly in black ink. Do not write in the barcodes. Centre number First name(s) Last name INSTRUCTIONS Candidate number • 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 60. • 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. 2 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 Gardeners are changing the way they care for their garden. Which change would increase biodiversity? A Adding chemical fertilisers to a grass lawn B Cutting a grass lawn more often than usual C Removing a grass lawn area and putting down paving stones D Replacing a grass lawn area with a wild flower meadow Your answer [1] 2 Which row is a correct comparison of meiosis and mitosis? Involves cell Halves the number Requires DNA division of chromosomes replication A both meiosis only both B both both both C meiosis only both mitosis only D mitosis only meiosis only mitosis only Your answer
Description: OCR 2024 GCSE Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) With Marking Scheme Merged COMBINED SCIENCE A Oxford Cambridge and RSA Friday 7 June 2024 – Afternoon GCSE (9–1) Combined Science A (Gateway Science) J250/08 Biology (Higher Tier) Time allowed: 1 hour 10 minutes You must have: H • a ruler (cm/mm) You can use: • a scientific or graphical calculator • an HB pencil * J 2 5 0 0 8 * Please write clearly in black ink. Do not write in the barcodes. Centre number First name(s) Last name INSTRUCTIONS Candidate number • 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 60. • 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. 2 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 Gardeners are changing the way they care for their garden. Which change would increase biodiversity? A Adding chemical fertilisers to a grass lawn B Cutting a grass lawn more often than usual C Removing a grass lawn area and putting down paving stones D Replacing a grass lawn area with a wild flower meadow Your answer [1] 2 Which row is a correct comparison of meiosis and mitosis? Involves cell Halves the number Requires DNA division of chromosomes replication A both meiosis only both B both both both C meiosis only both mitosis only D mitosis only meiosis only mitosis only Your answer