Page 61 - APS(2022)_TG5 _Edisi Guru

Sains Tingkatan 5 Bab 2
Tarikh:

AKTIVITI Fungsi Nutrien dan Kesan Kekurangan Nutrien
Perbincangan 2.7 Functions of Nutrients and Effects of Nutrient Deficiency
Masteri

1. Nyatakan mikronutrien berdasarkan fungsi utamanya. Kemudian, padankan kesan kekurangan mikronutrien
tersebut terhadap tumbuhan (kesan kekurangan mungkin lebih daripada satu). TP 2
State the micronutrients based on their major functions. Then, match the effect of the micronutrient deficiency on the plant (the effect of 2
deficiency may be more than one).
BAB
Fungsi utama Mikronutrien Kesan kekurangan
Major functions Micronutrient Effects of deficiency

(a) Sintesis bahan organik, membantu
dalam penguraian karbohidrat Boron Pertumbuhan terbantut
Synthesis of organic compound, help in Boron Stunted growth
decomposition of carbohydrate

(b) Mensintesiskan protein dan
membantu pertumbuhan tumbuhan Molibdenum Klorosis
Synthesises protein and helps growth of Molybdenum Chlorosis
plants

(c) Membantu pembentukan daun Zink Kematian tisu meristem
Helps formation of leaves Zinc Death of meristems

(d) Aktif dalam pembentukan asid
amino, mengaktifkan beberapa
Warna hijau muda di
enzim, yang diperlukan untuk
Mangan seluruh daun muda
langkah pembelahan air fotosintesis Manganese Light green colour throughout
Active in formation of amino acids, activates young leaves
some enzymes, required for water-splitting
step of photosynthesis
(e) Merupakan sebahagian daripada
sistem enzim dalam fotosintesis dan
Kuprum Daun bergulung
respirasi Copper Crinkled leaves
Part of the enzyme system in photosynthesis
and respiration

Kematian hujung akar
(f) Membantu respirasi sel Ferum
Helps cell respiration Ferum dan tunas pucuk
Death of root and shoot tips

2. Rajah di bawah menunjukkan dua helai daun yang dipetik oleh Maisarah. Tandakan (3) mikronutrien yang
kurang dalam tumbuhan itu yang menyebabkan daun berlubang dan berbintik-bintik kuning. TP 2
The diagram below shows two leaves picked by Maisarah. Tick (3) the micronutrients which is lack in the plant which causes the leaves
to be hollow and with yellow spots.

Ferum Zink
Ferum Zinc

Mangan 3 Boron
Manganese Boron

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02 BAB 2.indd 37 7/28/21 3:01 PM