Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International GCSE (9–1)
Tuesday 14 May 2024
Afternoon (Time: 1 hour 45 minutes) Paper
reference 4HB1/01
Human Biology
UNIT: 4HB1
PAPER: 01
You must have: Total Marks
Ruler
Candidates may use a calculator
Instructions
•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
• Show all the steps in any calculations and state the units.
Information
•• The total mark for this paper is 90.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
Advice
•• Read each question carefully before you start to answer it.
Write your answers neatly and in good English.
•• Try to answer every question.
Check your answers if you have time at the end.
Turn over
P74626RA
©2024 Pearson Education Ltd.
F:1/1/1/1/1/1/
*P74626RA0124*
, Answer ALL questions.
1 (a) The diagram shows a cell found in the human nervous system.
DO NOT WRITE IN THIS AREA
X
direction of impulse
(Source: © Designua/ Shutterstock)
(i) The cell shown in the diagram transmits electrical impulses from a
receptor cell to the central nervous system.
State the name of this type of nerve cell.
DO NOT WRITE IN THIS AREA
(1)
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
(ii) Name the structure labelled X.
(1)
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
DO NOT WRITE IN THIS AREA
2
*P74626RA0224*
, (b) Structures in the skin respond to information from the nervous system.
The diagram shows a section of the skin.
DO NOT WRITE IN THIS AREA
epidermis
S
dermis
R
layer of fat
DO NOT WRITE IN THIS AREA
(Source: adapted from Human Physiology and Health, Author David Wright,
Publisher Heinemann page 113)
(i) Name part R and part S.
(2)
part R
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
part S
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
(ii) Describe how part R helps to cool the body.
(2)
DO NOT WRITE IN THIS AREA
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
3
*P74626RA0324* Turn over
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International GCSE (9–1)
Tuesday 14 May 2024
Afternoon (Time: 1 hour 45 minutes) Paper
reference 4HB1/01
Human Biology
UNIT: 4HB1
PAPER: 01
You must have: Total Marks
Ruler
Candidates may use a calculator
Instructions
•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
• Show all the steps in any calculations and state the units.
Information
•• The total mark for this paper is 90.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
Advice
•• Read each question carefully before you start to answer it.
Write your answers neatly and in good English.
•• Try to answer every question.
Check your answers if you have time at the end.
Turn over
P74626RA
©2024 Pearson Education Ltd.
F:1/1/1/1/1/1/
*P74626RA0124*
, Answer ALL questions.
1 (a) The diagram shows a cell found in the human nervous system.
DO NOT WRITE IN THIS AREA
X
direction of impulse
(Source: © Designua/ Shutterstock)
(i) The cell shown in the diagram transmits electrical impulses from a
receptor cell to the central nervous system.
State the name of this type of nerve cell.
DO NOT WRITE IN THIS AREA
(1)
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
(ii) Name the structure labelled X.
(1)
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
DO NOT WRITE IN THIS AREA
2
*P74626RA0224*
, (b) Structures in the skin respond to information from the nervous system.
The diagram shows a section of the skin.
DO NOT WRITE IN THIS AREA
epidermis
S
dermis
R
layer of fat
DO NOT WRITE IN THIS AREA
(Source: adapted from Human Physiology and Health, Author David Wright,
Publisher Heinemann page 113)
(i) Name part R and part S.
(2)
part R
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
part S
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
(ii) Describe how part R helps to cool the body.
(2)
DO NOT WRITE IN THIS AREA
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ............................................................................................................................ .............. .. . . . . . . . . . . . . . . . . . . . .
3
*P74626RA0324* Turn over
