paper 2 biology

7/21/2019 Paper 2 Biology

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Section ABahagian A

[60 marks / markah]

Answer all questions in this sectionJawab semua soalan dalam bahagian ini

1

(ii) State one function of cell P and cell RNyatakan satu fungsi sel P dan sel R

Cell P / Sel P: !!

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Cell R /Sel R: !!!!

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[" #ar$s]


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(%) (i) &a#e the s'ste# which consist cell S!

Namakan sistem yang mengandungi sel S.

!!!!!!!!!!!!!!!!!!!

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(ii) *lain one role of cell S in the s'ste# na#ed in (%)(i)!

Terangkan satuperanan sel S di dalam sistem yang dinamakan di

(b)(i).

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(c) *lain one characteristic of tissue + to facilitate water a%sor*tion

fro# soil!

Terangkan satu !iri tisu " untuk membantu penyerapan air daripada

tanah.

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(d) cess fertili,er can cause distur%ance the trans*ort of su%stance to the

ste#! *lain -h'!

#ebihan ba$a boleh menyebabkan gangguan kepada pengangkutan

bahan ke pu!uk.

Terangkan mengapa.

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..

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!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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[. #ar$s]

" iara# " shows a *art hu#an circulator' s'ste# in hu#an

Ra$ah % menun$ukkan bahagian dari sistem peredaran dalam manusia

Diagram 2

(a) -hat ha**ened to the %lood *ressure fro# P to +

&pakah yang berlaku terhadap tekanan darah dari P ke "'


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!!!!!!!!!!!!!!!!!!!

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[1 #ar$]

(%) *lain wh' it is i#*ortant for P to ha2e thic$ wall!

Terangkan mengapa P perlu mempunyai dinding yang tebal.

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(c) *lain how #uscle near%' at + *re2ent %ac$ 3ow of %lood

Terangkan bagaiman otot berdekatan " menghalang aliran berbalik

darah

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(d) *lain how stucture of ca*illaries allows su%tances to *ass fro# the#

to the surroundin e4cientl'

Terangkan bagaiman stuktur kapilari membolehkan bahanbahan untuk

melaluinya ke kawasan sekitar dengan !ekap

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[. #ar$s]


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(e) *lain the si#ilarit' and di5erences of structure P and +

Nyatakan persamaan dan perbeaan struktur P dan "

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[ #ar$s]

. iara# . shows a section throuh the hu#an heart!Ra$ah * menun$ukkan keratan rentas $antung manusia.

(a)(i) &a#e the *arts la%elled P and S!Namakan bahagian yang berlabel P dan S

P :


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S : [" #ar$s]

(ii) 7n iara# 18 shade the ca2it' of the 2entricle which containso'enated %lood!

+alam gambara$ah ,-lorekkan bahagian entri!le yangmengandungi darah beroksigen

[1 #ar$] (iii)-hat is o'enated %lood

A*a$ah darah %ero$sien

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[1 #ar$]

(%) *lain wh' the wall that around the cha#%er + is #uch thic$er than

cha#%er RTerangkan mengapa dinding disekeliling ruang " lebih tebalberbanding dinding R'

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(c)(i) 7n iara# 18 la%el the %icus*id 2al2e with letter 9!+alam ra$ah ,- labelkan in$ab bi!uspid dengan huruf T

[1 #ar$]

(ii) *lain the function of %icus*id 2al2e! Terangkan fungsi in$ab bi!uspid

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(d) 9he coronar' arteries su**l' %lood to heart #uscle!&rteri koronari membekalkan darah ke otot $antung.

Suest one acti2it' of hu#an which #iht cause a %lood clot in acoronar' arter'!

adangkan satu aktiiti manusia yang boleh menyebabkanpembekuan darah dalam arteri koronari.


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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[1 #ar$]

*lain what #iht %e the result of such a %loc$ae!9eran$an 'an a$an %erla$u a*a%ila %erla$u salur darah tersu#%at!

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iara# shows the #o2e#ent of water fro# the root to the en2iron#ent!

Ra$ah 0 menun$ukkan pergerakan air dari akar ke daun dan seterusnya ke

persekitaran.


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!!!!!!!!!!!!!

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(c)(i) ist two factors which ena%le water to #o2e u*wards fro# the

'le# tu%e to the s*on' #eso*h'll!

Senarai$an dua fa$tor 'an #e#%oleh$an air %erera$ $e atas dari

salur ile# $e #eso;l %ers*an!

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[" #ar$s]

(ii) -hen the rate of *hotos'nthesis %eco#es hiher8 the rate of

trans*iration will also %eco#es hiher! *lain the a%o2e state#ent!

&pabila kadar fotosintesis tinggi- kadar transpirasi $uga tinggi.

Terangkan pernyataan di atas.

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5


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(%) *lain the di5erence of the anti%od' %etween 7ndi2idual P and + in

diara# = Jelaskan perbeaan antibodi pada indiidu P dan "

berdasarkan ra$ah 2

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[ #ar$s]

(c) *lain wh' indi2idual P need a second in>ection an wee$

Terangkan mengapa indiidu P memerlukan suntikan kedua padaminggu ke 0

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(d) State two t'*es of i##unit' other than shown in the diara#

Nyatakan dua $enis immuniti selain yang ditun$ukkan dalam ra$ah

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[" #ar$]

(e) Ali was %itten %' a sna$e and %eco#es unconscious! *lain how 'ou

can sa2e Ali!


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&li dipatuk ular dan menyebabkan dirinya tidak sedar. Terangkan

bagaimanakah !ara hendak menyelamat &li.

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[" #ar$s]

Section B

Bahagian B

[0 #ar$s]

Answer an' twoquestions fro# this section!

Jawab manamana duasoalan daripada bahagian ini

6! iara# 6!1 and iara# 6!" are diara#s to show the internal structure of

the heart and its associated circulator' s'ste# in a si#*li;ed for#! iara#6!1 re*resents the s'ste# for a #a##al and iara# 6!" that for a fro!


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Ra$ah 4., dan ra$ah 4.% menun$ukkan struktur dalaman $angtung dan

peredaran darah. Ra$ah 4., mewakili mammal dan ra$ah 4.% mewakili katak

Diagram 6.1 Diagram 6.2

(a) Co#*are and constrast the circulator' s'ste# %etween a #a##al and a

fro

5anding dan beakan sistem peredaran antara mammal dan katak

[6 #ar$s]

(%) ?en lo2es to eat food and fried food which has %een found to %e rich in

fats! *lain the consequences of consu#in this diet with res*ect to his

heart

5en suka makan terutamanya makanan yang bergoreng yang

mempunyai kandungan lemak yang tinggi. Jelaskan kesan pemakanan 5en

terhadap $antungnya.

[@ #ar$s]

(c) -hat are so#e of the a**roaches that ?en can ta$e to reduce the ris$ ofcardio2ascular diseases

&pakah langkah yang boleh 5en lakukan untuk mengurangkan risiko

penyakit kardioaskular'

[6 #ar$s]

(a) -hat is the *rcoess in2ol2ed in trans*ortation of water in *lant

&pakah proses yang terlibat dalam pengangkutan air dalam tumbuhan'

[10 #ar$s]

(%) *lain the *rocess #ention in (a)

Jelaskan prosesproses yang disebutkan di (a).[10 #ar$s]


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@!


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B! (a) iara# B!1 and B!" shows the staes in %lood clottin!

Ra$ah 6., dan 6.% menun$ukkan peringkat pembekuan darah.


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?ased on the diara# and on 'our %ioloical $nowlede8 descri%e how the

#echanis# of %lood clottin hel* to *re2ent infection when a wound occurs!

5erdasarkan ra$ah dan pengetahuan biologi anda- huraikan bagaimana

mekanisma pembekuan darah membantu untuk mengelakkan $angkitan apabila

berlakunya luka

[10

marks]

(%) the state#ent %elow descri%e the l'#*hatic s'ste#

pernyataan di bawah menerangkan sistem limfa

?ased on these state#ents8 e*lain wh' the l'#*hatic s'ste# is

considered co#*le#entar' to the %lood circulator' s'ste#!

5erdasarkan pernyataan ini- terangkan kenapa sistem limfa dikatakan

pelengkap kepada sistem peredaran darah.

[10

marks]

acteal in intestinal 2ili trans*ort *roducts of

li*ids#a!teal di ilus mengangkut produk lipid

A%out 10 of interstitial 3uid returns to the

circulator' s'ste# cia l'#*hatic s'ste#,78 !e!air interstitial akan kembali ke sistem

peredaran darah melalui sistem limfa

paper 2 biology

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