Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Exam (elaborations)

Edexcel IGCSE Biology Paper 1BR (4BI1/1BR) – January 2023 Question Paper

Rating
-
Sold
-
Pages
32
Grade
A+
Uploaded on
02-04-2026
Written in
2025/2026

Ace your Edexcel IGCSE Biology exams with this official January 2023 Paper 1BR (4BI1/1BR) question paper, exactly the type used by the British International School of Boston – the only private high school in Boston, Massachusetts offering Pearson Edexcel IGCSE qualifications. This authentic past paper covers: ️ Gas exchange & breathing – thorax structure (bronchus identification), diaphragm movement during inhalation, differences between inhaled and exhaled air (oxygen decrease, carbon dioxide increase), alveolar air composition vs exhaled air.

Show more Read less
Institution
Freshman / 9th Grade
Course
Biology

Content preview

1234536783796:8363;4<=>4:=?>6@3:4=256A32?B6A3C?D363>:3D=>E6F?GD674>@=@4:36=>C?D<4:=?>
(!)*+*!,#'-%)!., /0,%#)!.,'
012341678914 02 31678914

Æq¿‰‡ƒ‚ÄÀ†ˆr†p‚¸ƒ„†¿ƒq„‡ƒqp‚ÈɺĂ»Ê˹Á
ǁ°†S{Z74Y HIJKL ·³¹̧ƹ³Å‚·º¼Âƹ³Å
LKMKLKNOK
³‡ p‡ ´µ
¶ƒ„²‚·³¹̧
P


ºr†ƒr†‚»¼‡¯op†‚½¾q¿ÀÁ‚·º¼Â
ýÃÄŲ¹³Å
®‡¯‚°¯‰„‚q±†²
!"#$!%&'
0u\7u3Z4Œ47u14

llmmnYx€ywp1p‚1opƒ2\‚q„ur†sY‚o72Y‡t1ˆZ†4‰yZ943uu3v{w1zZ432Z8Y3wwZb1yY2t3^{13Y\{w1Yzb1z4Šw3{{Y‹Z378742Y38191Œ4t|}~Z4~^
cdefghifjkde
lm\U212Y3Š14142q7p89p7114Y32Z2\Y^2 31278914^
llmmU2‘YŠ1’“’4”•3{–1—”˜’7”1•Y™3“Z’2”šY›–2œ’3{”1‘–Yw”—\™1žY”w’4’ZŸŽ^1
lcdm¡k{gZ¢£Šfujuk3{d1Y31wY22‹\u\7u3Z2Y2Y3313{1723Y^
llmm¤¤{{ž11š’38”Z‘3¥4štu”–Y8šy”Z–44”t¦†žyqZ¥Ÿr4’3”{–šY7”w1™Y”‘3w™Z1§”24•Y4a1žaœYW‘{^”Z¥Š2•’”2™”š9›4’\Ÿt1”™3Y”’–œ‘”¨ž’𐥙^
llmm­¤041{‹13\Zt1‹2Z\Y{7Š1474211YYŽŠ131Z44‹2Y\y7‹411ZYy737Zu{u2‹^Ž911y3Z8141‹Z373{Y1314323Z^2YŠ143^
©ª«ji¬
lm



QRSTRSU
VSWSXQ14YZ2[7\3Z2]3^ 
_àbababababababab

,   
 




 !"#

$#




%&
'
$




 
(# 


 
)*+,-*./01,23.*40056-*72*81.*6.-976,846:*-:-8.;<*=1.*15;,2*6.-976,846:*-:-8.;*7-*
>40,8.?*72*81.*8146,/<
* @,A*=1.*?7,36,;*-14B-*-4;.*4C*81.*-8650856.-*72*81.*15;,2*8146,/<
*


D




* * @7A*E1,8*7-*81.*2,;.*4C*81.*-8650856.*>,F.>>.?*DG
H)I
,>J.4>5-
K F6420174>.
L F642015-
M 86,01.,
* * @77A*E1701*4C*81.-.*?.-067F.-*B1,8*1,99.2-*B1.2*,*9.6-42*F6.,81.-*72G
H)I
?7,916,3;*04286,08-*,2?*;4J.-*?4B2B,6?-
K ?7,916,3;*04286,08-*,2?*;4J.-*59B,6?-
L ?7,916,3;*6.>,/.-*,2?*;4J.-*?4B2B,6?-
M ?7,916,3;*6.>,/.-*,2?*;4J.-*59B,6?-



8
0123423563730

,  


 !
"#$%

&'('
&
)%)%

*
)#
%*
+

*,
)#-
1234256/72897/0:;<
./0
=5>/?2@/=3 2A>/?2@/=3
+B&% CD EF
$
# %*)+)* D-DG G
%)
#&% HI HI
  )J+"

)%
*)''#%$
!%
"#$%

&'&
)%)%

*
)#
%*)%
+

*
)#-
:<
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  ))K)#)%


L
)

$(" )
)%'EGM+B&%
%*HM$
# %,*)+)*-
   NO&&
!B
$(" )
)%'
)#)%


L
))*)''#%
'#(+

*
)#-
:P<
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

:Q86/?983RS206=85TUVW/3X0<




0123423567730






 89 

, 








!
"






#




$%&'()*+,-./-0,1%0/2-023,++4/5)6)78
$8$8





)-699:
;

<  


9=
>?@
A 



B 

C


D 

$8





9# 


!
EFG
0



!





HI JIEEEGK
>L@




!
JM





8
0123423564730

Written for

Institution
Freshman / 9th grade
Course
Biology
School year
1

Document information

Uploaded on
April 2, 2026
Number of pages
32
Written in
2025/2026
Type
Exam (elaborations)
Contains
Only questions

Subjects

$14.99
Get access to the full document:

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Get to know the seller

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
AcademicsExcellence Chamberlain College Of Nursing
Follow You need to be logged in order to follow users or courses
Sold
160
Member since
1 year
Number of followers
26
Documents
6995
Last sold
1 day ago
Academic Excellence | Study Guides &amp; Solutions

Dear Students, We have vast range of test banks and solution manuals of all topics, If you need any solution manual, testbank for testbooks do contact us anytime, save your time and effort and let you definitely understand what you are studying and get an amazing marks as well. Contact us 24/7 :

4.3

320 reviews

5
206
4
40
3
60
2
7
1
7

Recently viewed by you

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions