Science Paper 1 scheme
Trial PMR 2008 - Perak Darul Ridzuan
55/1
Marking Scheme
I
C
ll
C
21
D
31
C
2
C
12
D
22
B
')a JL
A
3
B
13
B
-r ,)
z)
A
a.l JJ
D
4
A
14
A
24
D
34
C
5
B
l5
B
25
C
35
C
6
A
l6
C
26
A
36
D
7
B
17
B
27
C
37
D
8
A
t8
B
28
D
38
A
9
C
l9
C
29
C
39
D
l0
A
20
D
30
D
40
B
SectionA [40 marks] Answerall questions.
(a) Semicircularcanal1l)) Salur separa bulat
Cochlea(Q) Koklea
I{) Earossicles{ Osikeltelinga
[ 3 marks] [3 markah] (b) A m p l i f i e ss o u n dw a v e s Menguatkan gelombang bunyi Controfs the balanceof the body Mengawal ke,se i mbangan badan Convertsoundvibrationto nerveimpulses Menukarkan getaran bunyi kepada impul.ssaraf
[2 marks] [2 markah] (c)
Microphone/ loudhailer/ earphone/ stethoscope/ioudspeaker
I I mark] I rnarkah]
(a)
Lungs I mark] I I markahJ To pumpbloodto the wholebody I I mark] I markahJ I
(b) a a a a a a a
A a a a a a I
Whole body (except lungs) Seluruh badan (kecuali peparu)
[2marks] [2 markahJ (c)
(d)
underlow P: The lumen is large/hasvalve/lessmuscularand lesselasticrblood blood pressure/deoxygenated cell thick/bloodundervery no valves/nonmuscular/one is very small/ Q:The lumen bloodi and oxygenated little pressure/deoxygenated I I mark] [ 1 markah] more oxygen carries blood The tissues/ the to To supply more oxygen [1 mark] I I markah]
X : c o n d e n s a ti o n Y : Bo i l i n g
(b\
[2 marks] [2 markah] // odourless//boilingpoint at l000cllmeltingpoint at00Cllhasa density i. Colourless// tasteless of I g/cm3ll abadlpoorconductorof heatllbad/poorconductorof electricity I mark] pmarkahJ boiling point higher(than l00oC)
(c)
I mark] flmarkahJ
ProcessZ ProsesZ
8E CO Il marks] f lmarkahJ
@
Heatis absorbed
[2 marks] [2 markah
(a)
ll 2 ( classlever) i. Second
I I mark] I I markahJ in opposite act ii. The load is betweenthe fulcrum and the effortlthe load and effort direction.
(b)
I mark] I markahJ I
Q needslesseffort than P to pull out the nail
I mark] p markahJ
(c.)
30kgxX:25kgx l.2rn. 3 0X :
30
X:lnt.
[2 marks] [2 markahJ
(d)
f)i:rgr-:rnr (i-J ( R:r j:rh 6-J )
(a)
Mouth
Oesophagus
l-1 * Il l stomach |
5 correct - 2m, 3 correct - l m
(b)
Q will contractand relax
(c) : Glucose i.Carbohydrates Karbohidrat
[2 marks] [2 markahJ I I mark] markahJ I I
ii. Proteins : A m i n o a c i d Protin iii.Fats : Glycerol and Fatty acid Lemak [3marks] [3 markahJ Viskingtube [ 1 mark] I I markahJ The enzymein salivafunctionsbestat bodytemperature I I mark] I I markahJ (a)
i.P I I mark] I I markahJ ii. CanP losesheatfasterthancanQ
(b)
[1 mark] markahJ fl
i. The black surface// P
[1 mark] markahJ I I ii. Lower than 5 50Cllmore heatradiate
(c)
[1 mark] fl markahJ u'ill rvarm longer) rentain (so hot drink heat, the The transmission / radiationof I mark] fl marknhJ Convectionof heat/hotair in the overr ( so the cake will cook faster)
I mark] p markah] (d)
Black colour radiateheat better than white / shinv colour [1 mark] [I markahJ
(a)
(i) (ii) (iii) (iv)
Paramecium/ Paramesium: Binaryfussion Chlamydomonas/ klamidomonas : Binaryfussion StarfishiTapak Sulaiman:Regeneration HydralHidro: Budding [ 4 marks] [4 markahJ
(b)
Paramec C h larnydomonas, i um. H1,dra,Starfish Ameba, Lintah bulan, Hidra, Tapak Suktiman
Has flagellum/has cilium/has tentacles
Common characteristic Ciri Sepunya
Doesnot have flagellum/Doesnot havecilium/Doesnot havetentacles
Hydra.starfish. Paramecium/ Chlamydomonas, Hydra, Star fi sh/Chlar,rydomonas, Paramecium. starfish
Chlamydomcnas/ Paramecium/ Hydra
Name of the organisms lYama organisma
[4 marks] 14narkahJ
(a)
36 secI saat// Time taken Masa yang riiombil
ll
r8
30
36
47
I markl I markah] I (b) (i) Manipulatedvariables
Volume of the conlainer
P embolehubah d imanupula,si
(ii) Responding variables
How long a candle burn.s/ time taken
Pembolehubah bergerakbalas ( i i i ) F i x e dv a r i a b l e s
Size of cctndle/ type of candle
P embo lehubah d i mal arkan 13marksl [3 markohJ (c)
The bigger lhe container, the longer the burning time of a candle.
I mark] fl ntarkahJ (d)
50
40 Time taken
30 1 20 10
0
400
600
800
1000
Volumeof glasscontainer
1200
[3 marks] [3 markahj
(e) 33 sec. As the volumeof the containerincreases,the time taken-forthe candleto burn also increases
(fl
12marksl [2 markahJ
The time takenfor the candle to burn decredses Exhaled air contains more carbon dioxide / less oxygen [2 mark] [2 markahJ