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5.3 : Oksigen Diperlukan Untuk 
Respirasi
Eksperimen 5.1 
Tujuan: 
menunjukkan bahawa hidupan menggunakan oksigen semasa 
respirasi 
Pernyataan masalah: 
Adakah hidupan menggunakan oksigen semasa respirasi 
Hipotesis: 
Hidupan menggunakan oksigen semasa respirasi 
Pemboleh ubah: 
Pemboleh ubah dimanipulasikan: Kehadiran hidupan 
Pemboleh ubah bergerak balas: Kedudukan penunjuk di dalam 
tiub kapilari 
Pemboleh ubah dimalarkan: Saiz tabung didih
Bahan dan radas: 
Tabung didih, penyumbat, dengan tiub kapilari, forceps, 
kapas, kasa dawai, larutan natrium hidroksida, lipas, biji 
benih kacang hijau bercambah, pen penanda, cecair 
berwarna,dan penitis
Prosedur: 
1. Sediakan radas seperti dalam rajah dan letakkan dalam keadaan mengufuk 
2. Masukkan setitis cecair berwarna ke dalam setiap tiub kapilari dengan 
menggunakan penitis. Cecair berwarna berfungsi sebagai penunjuk. 
3. Tandakan kedudukan awal cecair berwarna ini dengan pen penanda. 
4. Simpan ketiga-tiga radas di dalam sebuah almari selama 3 jam. 
5. Selepas 3 jam tandakan kedudukan akhir penunjuk. 
6. Buat kesimpulan berdasarkan pemerhatian. 
7. Tulis laporan eksperimen.
Perbincangan 
1. Apakah kegunaan larutan natrium hidroksida dalam 
eksperimen ini? 
2. Tabung didih yang manakh berubah kedudukan 
penunjuknya selepas 3 jam? 
3. Terangkan sebab kedudukan penunjuk berubah 
4. Apakah kegunaan tabung didih Z?
Eksperimen 5.2 
Tujuan: 
Menunjukkan bahawa hidupan membebaskan karbon 
dioksida semasa respirasi 
Pernyataan masalah: 
Adakah hidupan membebaskan karbon dioksida semasa 
respirasi? 
Hipotesis: 
Hidupan membebaskan karbon dioksida semasa respirasi.
Pemboleh ubah: 
Pemboleh ubah dimanipulasikan: Kehadiran hidupan 
Pemboleh ubah bergerak balas: perubahan warna 
penunjuk bikarbonat 
Pemboleh ubah dimalarkan: Saiz tabung didih 
Bahan dan Radas: 
Tabung didih, penyumbat tabung didih, rak tabung didih, 
kasa dawai, penunjuk bikarbonat, lipas, dan biji benih 
kacang hijau bercambah.
Prosedur: 
1. Sediakan radas seperti yang ditunjukkan dalam rajah. 
2. Simpan radas di dalam almari selama 3 jam. 
3. Perhatikan sebarang perubahan warna penunjuk 
bikarbonat. 
4. Buat kesimpulan berdasarkan pemerhatian anda. 
5. Tulis laporan bagi eksperimen ini.
Perbincangan 
1. Apakah kegunaan penunjuk bikarbonat di dalam 
eksperimen ini? 
2. Tabung didih yang manakah terdapat perubahan warna 
penunjuk bikarbonat? 
3. Terangkan perubahan warna penunjuk warna 
bikarbonat di dalam tabung didih tersebut. 
4. Adakah hipotesis anda diterima atau ditolak?
Penilaian 
 Apakah hasil daripada proses respirasi? 
 Mengapakah kedudukan penunjuk berubah pada uji kaji 
yang menunjukkan bahawa hidupan menggunakan 
oksigen? 
 Mengapakah warna pada penunjuk bikarbonat berubah 
pada uji kaji yang menunjukkan hidupan membebaskan 
karbon dioksida semasa respirasi?
Amali 5.1& 5.2: Oksigen diperlukan untuk respirasi

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Amali 5.1& 5.2: Oksigen diperlukan untuk respirasi

  • 1. 5.3 : Oksigen Diperlukan Untuk Respirasi
  • 2. Eksperimen 5.1 Tujuan: menunjukkan bahawa hidupan menggunakan oksigen semasa respirasi Pernyataan masalah: Adakah hidupan menggunakan oksigen semasa respirasi Hipotesis: Hidupan menggunakan oksigen semasa respirasi Pemboleh ubah: Pemboleh ubah dimanipulasikan: Kehadiran hidupan Pemboleh ubah bergerak balas: Kedudukan penunjuk di dalam tiub kapilari Pemboleh ubah dimalarkan: Saiz tabung didih
  • 3. Bahan dan radas: Tabung didih, penyumbat, dengan tiub kapilari, forceps, kapas, kasa dawai, larutan natrium hidroksida, lipas, biji benih kacang hijau bercambah, pen penanda, cecair berwarna,dan penitis
  • 4. Prosedur: 1. Sediakan radas seperti dalam rajah dan letakkan dalam keadaan mengufuk 2. Masukkan setitis cecair berwarna ke dalam setiap tiub kapilari dengan menggunakan penitis. Cecair berwarna berfungsi sebagai penunjuk. 3. Tandakan kedudukan awal cecair berwarna ini dengan pen penanda. 4. Simpan ketiga-tiga radas di dalam sebuah almari selama 3 jam. 5. Selepas 3 jam tandakan kedudukan akhir penunjuk. 6. Buat kesimpulan berdasarkan pemerhatian. 7. Tulis laporan eksperimen.
  • 5. Perbincangan 1. Apakah kegunaan larutan natrium hidroksida dalam eksperimen ini? 2. Tabung didih yang manakh berubah kedudukan penunjuknya selepas 3 jam? 3. Terangkan sebab kedudukan penunjuk berubah 4. Apakah kegunaan tabung didih Z?
  • 6. Eksperimen 5.2 Tujuan: Menunjukkan bahawa hidupan membebaskan karbon dioksida semasa respirasi Pernyataan masalah: Adakah hidupan membebaskan karbon dioksida semasa respirasi? Hipotesis: Hidupan membebaskan karbon dioksida semasa respirasi.
  • 7. Pemboleh ubah: Pemboleh ubah dimanipulasikan: Kehadiran hidupan Pemboleh ubah bergerak balas: perubahan warna penunjuk bikarbonat Pemboleh ubah dimalarkan: Saiz tabung didih Bahan dan Radas: Tabung didih, penyumbat tabung didih, rak tabung didih, kasa dawai, penunjuk bikarbonat, lipas, dan biji benih kacang hijau bercambah.
  • 8. Prosedur: 1. Sediakan radas seperti yang ditunjukkan dalam rajah. 2. Simpan radas di dalam almari selama 3 jam. 3. Perhatikan sebarang perubahan warna penunjuk bikarbonat. 4. Buat kesimpulan berdasarkan pemerhatian anda. 5. Tulis laporan bagi eksperimen ini.
  • 9. Perbincangan 1. Apakah kegunaan penunjuk bikarbonat di dalam eksperimen ini? 2. Tabung didih yang manakah terdapat perubahan warna penunjuk bikarbonat? 3. Terangkan perubahan warna penunjuk warna bikarbonat di dalam tabung didih tersebut. 4. Adakah hipotesis anda diterima atau ditolak?
  • 10. Penilaian  Apakah hasil daripada proses respirasi?  Mengapakah kedudukan penunjuk berubah pada uji kaji yang menunjukkan bahawa hidupan menggunakan oksigen?  Mengapakah warna pada penunjuk bikarbonat berubah pada uji kaji yang menunjukkan hidupan membebaskan karbon dioksida semasa respirasi?