Edexcel A Level 2023 Biology B Paper 1
, 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 7 June 2023
Afternoon
(Time: 1 hour
Paper reference
9BI0/01
45 minutes) ⬟
⬟
Biolog
yB
Advance
d
PAPER 1: Advanced Biochemistry, Microbiology
and Genetics
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.
•
Answer the questions in the spaces provided
questions.
– there may be more space than you need.
Information
, The marks for each question are shown in
• The total mark for this paper is 90.
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
P71909A
©2023 Pearson Education Ltd.
N:1/1/1/1/
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you D
change your mind about an answer, put a line through the box and O
then mark your new answer with a cross . N
O
1 Plants take up inorganic ions from the soil.
T
These ions include calcium, phosphate and potassium. W
R
(a) (i) Name the molecule that contains calcium ions in the cell walls of a plant. I
(1) T
E
............................................................................................................................... ............................................................................................................................... ...................... I
l N
(ii) How many of the following T
statements y H
are correct? I
D
S
• phosphate ions are used to t A
make DNA R
and RNA h E
r A
• phosphate ions are used in the
structure of the cell membrane
e
• the element potassium is part of
e
a peptide bond
A none
(b) The uptake of potassium ions by
B o plant seedlings in anaerobic and
aerobic conditions was
n investigated.
e The seedlings were grown in a mineral
ion solution containing a low
o
concentration of potassium ions for 30
n hours. The conditions were anaerobic for
the first 15 hours and aerobic for the
l second 15 hours.
y
C
t
w
o
o
n
, 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 7 June 2023
Afternoon
(Time: 1 hour
Paper reference
9BI0/01
45 minutes) ⬟
⬟
Biolog
yB
Advance
d
PAPER 1: Advanced Biochemistry, Microbiology
and Genetics
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.
•
Answer the questions in the spaces provided
questions.
– there may be more space than you need.
Information
, The marks for each question are shown in
• The total mark for this paper is 90.
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
P71909A
©2023 Pearson Education Ltd.
N:1/1/1/1/
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you D
change your mind about an answer, put a line through the box and O
then mark your new answer with a cross . N
O
1 Plants take up inorganic ions from the soil.
T
These ions include calcium, phosphate and potassium. W
R
(a) (i) Name the molecule that contains calcium ions in the cell walls of a plant. I
(1) T
E
............................................................................................................................... ............................................................................................................................... ...................... I
l N
(ii) How many of the following T
statements y H
are correct? I
D
S
• phosphate ions are used to t A
make DNA R
and RNA h E
r A
• phosphate ions are used in the
structure of the cell membrane
e
• the element potassium is part of
e
a peptide bond
A none
(b) The uptake of potassium ions by
B o plant seedlings in anaerobic and
aerobic conditions was
n investigated.
e The seedlings were grown in a mineral
ion solution containing a low
o
concentration of potassium ions for 30
n hours. The conditions were anaerobic for
the first 15 hours and aerobic for the
l second 15 hours.
y
C
t
w
o
o
n
