Edexcel A Level 2023 Biology B Paper 3
, Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Wednesday 21 June 2023
Morning (Time:
2 hours 30
Paper reference
9BI0/03
minutes) ⬟
⬟
Biolog
yB
Advance
d
PAPER 3: General and Practical Principles in Biology
You must have: Total Marks
Scientific calculator, HB
pencil, ruler
Instructions
Fill in the boxes at the top of this page with
• Use black ink or ball‑point pen.
your name,
centre number
Answer all and candidate number.
• questions.
Answer the questions in the spaces provided
– there may be more space than you need.
, Information
The marks for each question are shown in
• The total mark for this paper is 120.
brackets
– use this as a guide as to how much time to spend on each question.
•
In question(s) 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
Try to answer every
• Read each question carefully before you start to answer it.
question.
• Check your answers if you have time at the end.
Turn over
P71911A
©2023 Pearson Education Ltd.
N:1/1/1/1/
, Answer ALL
questions.
Write your
answers in the
spaces
provided.
(1)
1 Glucose is a monosaccharide.
(a) Complete the diagram to show the
structure of beta‑glucose.
D
C
O
H
N
2
O
O
T
H
W
R
H O I
H T
OH H E
HO I
N
H OH T
H
(b) Glucose molecules can be joined to form the polysaccharides starch and cellulose. I
S
Give three differences between the structures of starch and cellulose. A
(3) D
R
O
E
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N
A
O
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T
W
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R
I
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T
E
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N
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H
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S
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R
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D
E
O
A
............................................................................................................................... ............................................................................................................................... ......................
N
O
T
W
, Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Wednesday 21 June 2023
Morning (Time:
2 hours 30
Paper reference
9BI0/03
minutes) ⬟
⬟
Biolog
yB
Advance
d
PAPER 3: General and Practical Principles in Biology
You must have: Total Marks
Scientific calculator, HB
pencil, ruler
Instructions
Fill in the boxes at the top of this page with
• Use black ink or ball‑point pen.
your name,
centre number
Answer all and candidate number.
• questions.
Answer the questions in the spaces provided
– there may be more space than you need.
, Information
The marks for each question are shown in
• The total mark for this paper is 120.
brackets
– use this as a guide as to how much time to spend on each question.
•
In question(s) 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
Try to answer every
• Read each question carefully before you start to answer it.
question.
• Check your answers if you have time at the end.
Turn over
P71911A
©2023 Pearson Education Ltd.
N:1/1/1/1/
, Answer ALL
questions.
Write your
answers in the
spaces
provided.
(1)
1 Glucose is a monosaccharide.
(a) Complete the diagram to show the
structure of beta‑glucose.
D
C
O
H
N
2
O
O
T
H
W
R
H O I
H T
OH H E
HO I
N
H OH T
H
(b) Glucose molecules can be joined to form the polysaccharides starch and cellulose. I
S
Give three differences between the structures of starch and cellulose. A
(3) D
R
O
E
............................................................................................................................... ............................................................................................................................... ......................
N
A
O
............................................................................................................................... ............................................................................................................................... ......................
T
W
............................................................................................................................... ............................................................................................................................... ......................
R
I
............................................................................................................................... ............................................................................................................................... ......................
T
E
............................................................................................................................... ............................................................................................................................... ...................... I
N
............................................................................................................................... ............................................................................................................................... ...................... T
H
............................................................................................................................... ............................................................................................................................... ...................... I
S
............................................................................................................................... ............................................................................................................................... ...................... A
R
............................................................................................................................... ............................................................................................................................... ......................
D
E
O
A
............................................................................................................................... ............................................................................................................................... ......................
N
O
T
W
