soalan semester akhir sem 2 biology tingkatan 4 2011

SULIT 3

Section ABahagian A

[24 marks][24 markah]

Answer all questions in this sectionJawab semua soalan dalam bahagian ini

1. Diagram 1.1( a) and Diagram 1.1 (b) show two respiratory structures of different organisms. Rajah 1.1 (a) dan Rajah 1.1 (b) menunjukkan dua struktur respirasi bagi organisma yang berbeza.

(a ) (i) Name the respiratory structures shown in the diagrams above. Namakan struktur respirasi yang ditunjukkan dalam rajah-rajah di atas.

Diagram 1.1 (a) : ……………………………………………………………...

Diagram 1.1 (b) : ……………………………………………………………... [ 2 marks ][ 2 markah ]

(ii) Name the structures labelled P, Q, R and S. Namakan struktur yang berlabel P, Q, R dan S.

P : ………………………………………………………………………………

Q : ……………………………………………………………………………...

R : ………………………………………………………………………………

S : ………………………………………………………………………………

[ 2 marks ][ 2 markah ]

(b) Explain one adaptation of respiratory structure in both organism. Terangkan satu penyesuaian yang terdapat dalam struktur respirasi dalam kedua-

4551/2, 4551/3 © 2011 Hak Cipta Bahagian Pendidikan & Latihan (Menengah) MARA SULIT

Diagram 1.1 (a)Rajah 1.1 (a)

Diagram 1.1 (b)Rajah 1.1 (b)

PQ

R

S

SULIT 4

dua organisma.

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……………………………………………………………………………….............[ 2 marks ][ 2 markah ]

(c) Diagram 1.2 shows cross section of alveolus and blood capillary. Rajah 1.2 menunjukkan keratan rentas alveolus dan kapilari darah..

(i) Explain the process which takes place in the diagram above. Terangkan proses yang berlaku dalam rajah di atas.

…………………………………………………………………………………………

………………………………………………………………………………...............

………………………………………………………………………………...............

………………………………………………………………………………..............[ 3 marks ][ 3 markah ]


Diagram 1.2Rajah 1.2

Alveolus

Blood capillaryO2

Alveolus

Kapilari darah

SULIT 5

(ii) Cigarette smoke contains harmful substances. Name one substance which can be deposited on the wall of alveolus.

Asap rokok mengandungi bahan-bahan yang memudaratkan. Namakan satu bahan yang boleh terenap pada dinding alveolus.

........................................................................................................................ [ 1 marks ][ 1 markah ]

(iii) Explain the effect of the substance stated in (c) (ii) on the process of gaseous exchange. Terangkan kesan bahan yang dinyatakan di (c) (ii) pada proses pertukaran gas.

……………………………………………………………………………………

………………………………………………………………………………........

………………………………………………………………………………........[2 marks ][ 2 markah ]


SULIT 6

2. Diagram 2.1 shows an organelle in a plant cell which is involved in photosynthesis. Rajah 2.1 menunjukkan organel yang terdapat di dalam sel tumbuhan yang terlibat dalam fotosintesis.

Diagram 2.1 Rajah 2.1

a) In the spaces provided in Diagram 2.1, name the parts labeled X, Y and Z.Di dalam ruang yang disediakan dalam Rajah 2.1 namakan bahagian yang berlabel X, Y dan Z.

[2 marks] [2 markah]

(b)(i) Name the pigment in structure X which is involved in photosynthesis? Namakan pigmen di dalam struktur X yang terlibat dalam fotosintesis?

…………………………………………………………………………………………..[1 marks]

[1 markah]

(ii) Explain the process which takes place in structure X. Terangkan proses yang berlaku di dalam struktur X.

………………………………………………………………………………………...

………………………………………………………………………………………...

………………………………………………………………………………………...

………………………………………………………………………………………..[4 marks]

[4 markah]


X :

Y :

Z :

SULIT 7

(c) Explain one adaptation of a desert plant to carry out photosynthesis. Terangkan satu penyesuaian bagi tumbuhan gurun untuk menjalankan fotosintesis.

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..[2 marks]

[2 markah]

(d) Diagram 2.2 shows a type of human activity . Rajah 2.2 menunjukkan sejenis aktiviti manusia .


Explain how the activity in Diagram 2.2 causes global warming in respect to photosynthesis.Terangkan bagaimana aktiviti dalam Rajah 2.2 menyebabkan pemanasan global dari sudut fotosintesis.

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..[4 marks]

[4 markah]


SULIT 8

Section B Bahagian B

[15 marks / 15 markah]

Answer all questions.Jawab semua soalan.

3. (a) Diagram 3.1 shows structure W which traps red blood cells to enable the blood to clot. Rajah 3.1 menunjukkan struktur W memerangkap sel darah merah

bagi membolehkan darah membeku.

Diagram 3.1

Rajah 3.1

(a) Explain how structure W is formed. Terangkan bagaimana struktur W terbentuk.

[ 4 marks ] [4 markah ]


Red blood cellSel darah merah

W

SULIT 9

(b) Diagram 3.2 shows part of the blood circulatory system and the lymphatic system in the human body. Rajah 3.2 menunjukkan sistem peredaran darah dan sistem limfa dalam badan manusia.


Describe the formation of fluid S.Huraikan pembentukan bendalir S.



Fluid S

From the heart

To the heart

Dari jantung

To the heart Ke jantung

Bendalir S

Blood capillaries Kapilari darah

Lymph capillaries Kapilari limfaTissue cells

tisu badan

Animal proteinProtein haiwan

FeedingDimakan

Plant proteinProtein tumbuhan

DiedMati

SULIT 10

(c) Diagram 3.3 shows the role of useful microorganisms in an ecosystem.Rajah 3.3 menunjukkan peranan mikrorganisma yang berguna di dalam ekosistem.


Based on diagram 3.3, explain how the content of compound R is maintained by the microorganism. Berdasarkan Rajah 3.3 , terangkan bagaimana kandungan sebatian R dikekalkan oleh mikroorganisma.


END OF QUESTION PAPERKERTAS SOALAN TAMAT


Nitrogen in airNitrogen di udara

Denitrifying bacteriaBakteria pendenitritan

DecompositionPenguraian

AmmoniaAmmonia

NitritesNitrit

Compound RSebatian R

Excretion of urea and egestion of faecesPerkumuhan urea dan penyahtinjaan

AbsorptionPenyerapan

Nitrogen fixation bacteria in plant PBakteria pengikat nitrogen pada tumbuhan

SULIT 11

SPACE FOR ANSWERS

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SULIT 12

SPACE FOR ANSWERS


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SULIT 13

SPACE FOR ANSWERS


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For examiner’s

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soalan semester akhir sem 2 biology tingkatan 4 2011

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