Page 65 - APS(2022)_TG5 _Edisi Guru

Sains Tingkatan 5 Bab 2

3. Mengapakah larutan itu mesti diudarakan setiap hari? Menganalisis
Why must the solution be aerated every day?

Membekalkan oksigen kepada akar supaya dapat menjalankan
respirasi dan tidak mereput

To supply oxygen to the roots so that they can carry out respiration and do not decay
2
4. Nyatakan kesan terhadap pertumbuhan daun sekiranya tumbuhan itu kekurangan TP 2
BAB
State the effects on the growth of leaves if the plant is deficient in
(a) nitrogen
nitrogen

Daun-daun bersaiz kecil dan menjadi kuning .
Leaves become small and become yellow .

(b) fosforus
phosphorus EKSPERIMEN WAJIB

Daun-daun bersaiz kecil dan hujung daun kelihatan ungu .
Leaves become small and the tips of leaves look purple .

(c) kalium
potassium

Daun-daun bertompok perang kemerahan .
Leaves have reddish-brown patches .

5. Ramalkan pertumbuhan anak benih jika satu lagi tabung didih yang berisi air suling
digunakan. TP 2
Predict the growth of seedling if another boiling tube using distilled water is used.

Ketinggian dan pertumbuhan akar terbantut, saiz daun adalah kecil dan
daun berwarna kuning .

Stunted height and root growth , leaf size is small and the leaves are yellow in colour.

6. Apakah larutan kultur lengkap?
What is the complete culture solution?

Larutan kultur lengkap ialah bahan yang diperlukan untuk pertumbuhan anak
benih yang sihat .

A complete culture solution is a substance that is needed for the healthy growth of the seedlings .

Kesimpulan 1. Hipotesis diterima .
Conclusion
Hypothesis is accepted .

nitrogen fosforus
2. Tumbuhan tidak dapat tumbuh subur jika kekurangan , ,
kalium
dan .
Plants cannot grow healthily if they are deficient in nitrogen , phosphorus and potassium .

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02 BAB 2.indd 41 7/28/21 3:01 PM