Page 252 - MODUL BIOLOGI EXCELL SPM

MODUL BIOLOGI EXCELL SPM

The following steps were carried out:
Langkah-langkah berikut telah dijalankan:

Step 1 : Small pieces of bread (P) are cut off and the mass is weight and recorded using a
balance.
Langkah 1 : Sebahagian kecil roti (P) telah dikerat dan jisimnya ditimbang serta direkodkan
menggunakan penimbang.

Step 2 : 20 ml of distilled water was placed into a clean boiling tube by using a measuring
cylinder.
Langkah 2 : 20 ml air suling dimasukkan ke dalam tabung didih yang bersih menggunakan silinder
penyukat.

Step 3 : The boiling tube is clamped to a retort stand with thermometer placed in it.
Langkah 3 : Tabung didih diapit pada kaki retort dengan termometer diletakkan ke dalamnya.

Step 4 : The initial temperature of water in the boiling tube were measured and recorded by
using a thermometer.
Langkah 4 : Suhu awal air di dalam tabung didih diukur dan direkodkan menggunakan termometer.

Step 5 : The bread (P) is attached to a pin and burnt in a labour gas flame.
Langkah 5 : Roti (P) dilekatkan pada pin dan dibakar di dalam api gas labor.

Step 6 : When completely burnt, the burnt bread is placed below the boiling tube.
Langkah 6 : Apabila pembakaran lengkap, roti yang dibakar diletakkan di bawah tabung didih.

Step 7 : The water is stirred gently with the thermometer.
Langkah 7 : Air dikacau secara perlahan menggunakan termometer.

Step 8 : The final temperature of water is recorded using the thermometer.
Langkah 8 : Suhu akhir air direkodkan menggunakan termometer.

Step 9 : The energy value of bread is calculated using the following formula:

-1
Energy value = 4.2 (Jg ˚C) x mass of water (g) x temperature increase(˚C)
Mass of food sample (g)

Langkah 9 : Nilai tenaga roti dihitung menggunakan formula berikut:

-1
Nilai tenaga = 4.2 (Jg ˚C) x jisim air (g) x kenaikan suhu (˚C)
Jisim sampel makanan (g)

Step 10 : Step 1 until 9 are repeated using anchovy (Q) and cashew nut (R)
Langkah 10 : Langkah 1 hingga 9 diulangi menggunakan ikan bilis (Q) dan kacang gajus (R)

Sektor Pembelajaran, Jabatan Pendidikan Negeri Sabah | 2020 251