2024 Pearson Edexcel GCSE In Combined Science Biology (1SC0) Paper 2BH question paper and marking scheme (merged)

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Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Friday 7 June 2024
Afternoon (Time: 1 hour 10 minutes)
Paper
reference 1SC0/2BH
Combined Science
4

Tier
Total Marks




Instructions

• Use black ink or ball-point pen.
centre number and candidate number.

Answer the questions in the spaces provided –
there may be more space than you need.

Information

• The total mark for this paper is 60.
– use this as a guide as to how much time to spend on each question.
In questions marked with an asterisk (*), marks will be awarded for your ability to structure
your answer logically, showing how the points that you make are related or follow on from
each other where appropriate.

Advice
• Read each question carefully before you start to answer it.
• Check your answers if you have time at the end.
Pearson Edexcel GCSE
In Combined Science Biology (1SC0) Paper 2BH



Turn over

, Answer ALL questions.

Write your answers in the spaces provided.

Some questions must be answered with a cross in a box . If you change your mind about an
answer, put a line through the box and then mark your new answer with a cross .

1 A centrifuge can be used to separate the different parts of human blood. Figure 1

shows blood separated into different parts.




part X


white blood cells and platelets


red blood cells




Figure 1

(a) (i) Name part X.
(1)

. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . ......................



(ii) Which substance, needed for cellular respiration, is carried by red blood cells?
(1)
A carbon dioxide

B urea

C amino acids

D oxygen


(iii) Name two types of white blood cell.
(2)

1 . . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . .................



2 . . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . .................




2

,■■■■

, (b) (i) When a person donates blood, 470 cm3 of blood is removed from their body. Red

blood cells make up 44 % by volume of the blood.

Calculate the volume of red blood cells in 470 cm3 of donated blood.

Give your answer to the nearest whole number.
(3)




. .............................................................................................................. cm3

(ii) Before donating blood, a person has a small blood sample taken to check that the
blood is healthy.

State two precautions a doctor should take when collecting this sample.
(2)

1 . . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . .................



. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . ......................



2 . . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . .................



. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. ... . .. .. .. . . .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . ......................



(Total for Question 1 = 9 marks)




3
■■■■ Turn over