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3. Diagram 3.1 shows a cross section of a leaf and the organelle P that is found in

the

palisade mesophyll cell.

Rajah 3.1 menunjukkan keratan rentas daun dan organel P didapati di dalam

mesofil

palisad.

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Diagram 3.1

  Rajah 3.1

(a) State the role of organelle P in photosynthesis.

yatakan peranan organel P dalam fotosintesis.

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  !1 mark"

  !1 markah"

(#) State the structural adaptation of palisade mesophyll cell to increase the

efficiency of photosynthesis.yatakan penyesuaian struktur #agi sel mesofil palisad untuk meningkatkan

kecekapan proses fotosintesis.

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  !1 mark"

  !1 markah"

(c ) $%plain how gas is produced in reaction &'

erangkan #agaimana gas ter#entuk dalam tindak#alas &'

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  ! marks"

  ! markah"

(d) Diagram 3. shows cell * during day time.

Rajah 3.

menunjukkan sel * semasa siang hari.

  Diagram 3.1

  Rajah 3.1

$%plain how the light intensity affect the opening of structure R.

erangkan #agaimana keamatan cahaya mem#eri kesan kepada pem#ukaan

struktur R.

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  !3 marks"

  !3 markah"

(e) State two differences #etween reaction & and +

yatakan dua per#e,aan diantara tindak#alas & dan tindak#alas +

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  ! marks"

  ! markah"

(f) -n a greenhouse the temperature is maintained at / o0. en 3/ att #ul#s are

used to light up the greenhouse

Di dalam rumah kaca suhu dikekalkan pada / o0. Sepuluh mentol 3/ att

digunakan untuk mem#ekalkan cahaya di dalam rumah kaca.

2igure .3 shows a graph effect of car#on dio%ide concentration on the rate of

photosynthesis of the plant in the greenhouse.

Rajah .3 menunjukkan graf kesan kepekatan kar#on dioksida terhadap

fotosintesis pada pokok didalam rumah kaca.

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  Diagram 3.3

  Rajah 3.3

$%plain how the rate of photosynthesis is increased from cur4e 5 to #ecome

cur4e 6.

erangkan #agaimana kadar fotosintesis dapat ditingkatkan dari lengkung 5

kepada lengkung 6.

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  !3 marks"

  !3 markah"

7.