AQA
GCSꬲ
COMBIN D ꬲ SCI NC :ꬲ ꬲ SYN RGY ꬲ
High rꬲ Ti rꬲPap rꬲ 2 Lifꬲ and nvironm ntalꬲ ꬲ Sci nc sꬲ ꬲ
Thursday 25 May 2023 20
Do not writꬲoutsid ꬲ thꬲbox
G/Jun23/8465/2H1
All living organisms arꬲ madꬲ of c lls.ꬲ
Figur ꬲ 1 shows two typ sꬲ of c ll.ꬲ
C llꬲ A
Bact rialꬲ c llꬲFigur ꬲ 1
C ll ꬲB
Liv rꬲ c llꬲ
4.4 microm tr s ꬲ ꬲ 28.6 microm tr s ꬲ ꬲ
Not to scalꬲ
.Calculat ꬲ how many tim sꬲ long rꬲ thꬲ liv rꬲ c llꬲ is than thꬲ bact rialꬲ c ll.ꬲ
[2 marks]
Numb r ꬲ of tim sꬲ long rꬲ = 1010 3220
Do not writꬲoutsid ꬲ thꬲbox
G/Jun23/8465/2H.Compar ꬲ thꬲ structur ꬲ of c llꬲ A with thꬲ structur ꬲ of c llꬲ B.
You should includ similariti s and diff r nc s in your answ r. ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ
Do not r f r to c ll siz .ꬲ ꬲ ꬲ ꬲ
[4 marks]
.In multic llular ꬲ organisms, c llsꬲ arꬲ organis d ꬲ into tissu s.ꬲ
What is m antꬲ by a ‘tissu ’? ꬲ
[1 mark]
Qu stionꬲ 1 continu s ꬲ on thꬲ n xtꬲ pagꬲ
Turn ov rꬲ ▶1010 420
Do not writꬲoutsid ꬲ thꬲbox
G/Jun23/8465/2HA sci ntist inv stigat d th ff ct of diff r nt conc ntrations of sugar solution on r d ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ
blood c lls. ꬲ
Figur ꬲ 2 shows thꬲ ff ctꬲ ꬲ of placing a r dꬲ blood c llꬲ into a sugar solution.
Figur ꬲ 2
R dꬲ blood c llꬲ b forꬲ ꬲ b ing ꬲ
plac d in sugar solutionꬲR dꬲ blood c llꬲ aft rꬲ b ing ꬲ
plac d in sugar solutionꬲ
.What conclusion can bꬲ madꬲ from thꬲ r sultꬲ in Figur ꬲ 2?
Tick () onꬲ box.
Thꬲ sugar solution was l ssꬲ conc ntrat d ꬲ ꬲ than insidꬲ thꬲ c ll.ꬲ[1 mark]
Thꬲ sugar solution was thꬲ samꬲ conc ntration ꬲ as insidꬲ thꬲ c ll.ꬲ
Thꬲ sugar solution was morꬲ conc ntrat d ꬲ ꬲ than insidꬲ thꬲ c ll.ꬲ10
GCSꬲ
COMBIN D ꬲ SCI NC :ꬲ ꬲ SYN RGY ꬲ
High rꬲ Ti rꬲPap rꬲ 2 Lifꬲ and nvironm ntalꬲ ꬲ Sci nc sꬲ ꬲ
Thursday 25 May 2023 20
Do not writꬲoutsid ꬲ thꬲbox
G/Jun23/8465/2H1
All living organisms arꬲ madꬲ of c lls.ꬲ
Figur ꬲ 1 shows two typ sꬲ of c ll.ꬲ
C llꬲ A
Bact rialꬲ c llꬲFigur ꬲ 1
C ll ꬲB
Liv rꬲ c llꬲ
4.4 microm tr s ꬲ ꬲ 28.6 microm tr s ꬲ ꬲ
Not to scalꬲ
.Calculat ꬲ how many tim sꬲ long rꬲ thꬲ liv rꬲ c llꬲ is than thꬲ bact rialꬲ c ll.ꬲ
[2 marks]
Numb r ꬲ of tim sꬲ long rꬲ = 1010 3220
Do not writꬲoutsid ꬲ thꬲbox
G/Jun23/8465/2H.Compar ꬲ thꬲ structur ꬲ of c llꬲ A with thꬲ structur ꬲ of c llꬲ B.
You should includ similariti s and diff r nc s in your answ r. ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ
Do not r f r to c ll siz .ꬲ ꬲ ꬲ ꬲ
[4 marks]
.In multic llular ꬲ organisms, c llsꬲ arꬲ organis d ꬲ into tissu s.ꬲ
What is m antꬲ by a ‘tissu ’? ꬲ
[1 mark]
Qu stionꬲ 1 continu s ꬲ on thꬲ n xtꬲ pagꬲ
Turn ov rꬲ ▶1010 420
Do not writꬲoutsid ꬲ thꬲbox
G/Jun23/8465/2HA sci ntist inv stigat d th ff ct of diff r nt conc ntrations of sugar solution on r d ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ ꬲ
blood c lls. ꬲ
Figur ꬲ 2 shows thꬲ ff ctꬲ ꬲ of placing a r dꬲ blood c llꬲ into a sugar solution.
Figur ꬲ 2
R dꬲ blood c llꬲ b forꬲ ꬲ b ing ꬲ
plac d in sugar solutionꬲR dꬲ blood c llꬲ aft rꬲ b ing ꬲ
plac d in sugar solutionꬲ
.What conclusion can bꬲ madꬲ from thꬲ r sultꬲ in Figur ꬲ 2?
Tick () onꬲ box.
Thꬲ sugar solution was l ssꬲ conc ntrat d ꬲ ꬲ than insidꬲ thꬲ c ll.ꬲ[1 mark]
Thꬲ sugar solution was thꬲ samꬲ conc ntration ꬲ as insidꬲ thꬲ c ll.ꬲ
Thꬲ sugar solution was morꬲ conc ntrat d ꬲ ꬲ than insidꬲ thꬲ c ll.ꬲ10
