1BI0/2H PAPER 2. With Marking Scheme Merged
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Friday 7 June 2024
reference 1BI0/2H
Afternoon (Time: 1 hour 45 minutes) Paper
Biology
PAPER 2
Higher Tier
You must have: Total Marks
Ruler, 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.
Information
• The total mark for this paper is 100.
• The marks for each question are shown in brackets
• – 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.
• Try to answer every question.
• Check your answers if you have time at the end.
Turn over
P75505A
©2024 Pearson Education Ltd.
*P75505A0128*
F:1/1/1/1/1/1/1/
, Answer ALL questions.
Write your answers in the spaces provided.
DO NOT WRITE IN THIS AREA
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) Banting and Best were the first scientists to use the hormone insulin
for the treatment of diabetes.
They extracted insulin from the body organs of animals.
(i) Which body organ produces insulin?
(1)
A liver
B heart
C kidney
D pancreas
DO NOT WRITE IN THIS AREA
(ii) How does insulin travel to its target organ?
(1)
A by diffusion along neurones
B dissolved in blood plasma
C attached to red blood cells
D by osmosis in white blood cells
DO NOT WRITE IN THIS AREA
2
*P75505A0228*
, (b) Tasting urine was one of the first ways doctors tested for diabetes.
If the urine tasted sweet, the patient may have diabetes.
DO NOT WRITE IN THIS AREA
Describe the chemical test we now use to test for glucose in urine.
(3)
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
(c) A scientist wanted to compare the glucose concentration in two urine samples.
State two variables that need to be controlled for the comparison to be valid.
DO NOT WRITE IN THIS AREA
(2)
1 ................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
2 ................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
(Total for Question 1 = 7 marks)
DO NOT WRITE IN THIS AREA
3
,