Page 56 - PWR UP TG3 SAINS
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Sains Tingkatan 3 Bab 8
1. Encik Hamid ialah seorang perokok tegar yang telah mengalami sesak nafas
akibat asma. Dia telah berjumpa doktor untuk mendapatkan rawatan. PANDUAN MENJAWAB
Mr Hamid is a hard core smoker who has su ocated due to asthma. He consulted a doctor for
treatment. KBAT Menilai Nikotin ialah dadah beracun
Doktor : Saya harap awak berhenti merokok kerana penyakit asma yang menyebabkan ketagihan
awak agak serius. merokok.
Doctor : I hope you quit smoking because your asthma is quite serious. Nicotine is a toxic drug that cause
addiction to smoking.
Encik Hamid : Saya telah cuba untuk berhenti merokok. Walau
bagaimanapun, badan saya terasa lemah dan mengantuk.
Saya tidak dapat melakukan tugasan.
Mr Hamid : I have tried to quit smoking. However, my body felt weak and drowsy. I can’t
do my work.
Apakah penerangan yang sesuai diberikan oleh doktor kepada Encik Hamid?
What is the proper explanation given by the doctor to Mr Hamid?
Nikotin dalam asap rokok menyebabkan Encik Hamid ketagih. Dia akan
menjadi lemah sekiranya tidak merokok.
Nicotine in the cigarette has caused Mr Hamid to be addicted. He would be weak if he did not
smoke. Aktiviti cergas memerlukan lebih
tenaga. Bernafas dengan cepat
2. Seorang pelari pecut akan mencungap ketika sedang berlari. Terangkan. membolehkan orang tersebut
A sprinter will be panting as he runs. Explain. KBAT Mengaplikasi mengambil lebih oksigen untuk
keperluan respirasi sel bagi
Berlari memerlukan tenaga yang banyak. Oksigen dan glukosa menghasilkan tenaga.
diperlukan untuk menghasilkan tenaga melalui proses respirasi sel. Pelari Active activity requires more energy.
Breathing quickly allows the person to
mencungap untuk menyedut oksigen yang lebih. Kadar respirasi meningkat take more oxygen for the purpose of
dan tenaga yang dihasilkan juga meningkat. cell respiration to produce energy.
Running requires a lot of energy. To produce energy requires oxygen and glucose through the
cellular respiration process. The runner pants to take in more oxygen. Respiratory rate increases
and the energy produced also increases.
3. Seorang mangsa kemalangan jalan raya telah dikejarkan ke hospital Fungsi diafragma ialah untuk
kerana mengalami kesukaran bernafas sehingga menyebabkan kematian. mengubah tekanan udara
dalam rongga toraks dengan
Mengikut doktor yang merawatnya, mangsa tersebut telah mengalami menambah atau mengurangkan
patah tulang rusuk dan tulang tersebut telah menembusi diafragmanya. isi padu toraks.
Jelaskan bagaimanakah kecederaan ini boleh menyebabkan kematian. The function of the diaphragm is to
KBAT Menilai change the air pressure in the thoracic
cavity by increasing or decreasing the
A victim of road accident was rushed to the hospital for breathing di culties resulting in thoracic volume.
death. According to the doctor who treated him, the victim had broken ribs and the bones had
penetrated the diaphragm. Explain how this injury can cause death.
Apabila tulang rusuk menembusi diafragma, isi padu sangkar rusuk tidak
boleh dimanipulasi. Tekanan udara di dalamnya tidak boleh diubah-ubah.
Udara tidak boleh dipaksa masuk atau keluar.
When the ribs penetrate the diaphragm, the volume of the rib cage cannot be manipulated. The
air pressure inside it cannot be changed. Air cannot be forced in or out.
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