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Baiklah para Pelajar,: Organ Pernafasan Boleh Dijangkiti Oleh

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today we will study the subtopic, 1.3.

1, which is,

THE EFFECTS OF HARMFUL SUBSTANCES

Bahan –bahan yg memudaratkanrespirasiyang sihat

before we go further lets look at our objective today

able to explain the effects of harmful substances

menerangkan kesan kesan bhn berbhy

dear students, please be focused on what we are going to study in a while

sila tumpukan perhatian

before that, you should know, what is the cause of "diseases of the respiratory system"

sebelum itu, kamu harus tahu apakahyg menyebabkan penyakit terhd[p system respirasi manusia

well, the respiratory organs can be infected by

baiklah para pelajar, organ pernafasan boleh dijangkiti oleh

bacteria

or viruses causing various diseases.

Atau virus yang menyebabkan pelbagai jenis penyakit

some harmful substances can also cause respiratory diseases. Let's look at, each of it

terdpt beberapa bahan yang boleh menyebabkan penyakit terhdp system respirasi. Mari kita
lihat satu per Satu
Smoking is very harmful to the respiratory system

Menghisap asap rokok secraa kerap ked lm badan memberikan kesan yg berbhy

The three most hazardous chemicals in cigarette smoke are tar, nicotine and carbon monoxide.

Asap rokok telah dianalisis dan terbukti mengandungi beribu ribu bhn kimia yg berbhy

These are poisons that can kill.

Yg boleh menyebabkan kematian

The high temperature of the smoke may harm body cells.

Suhuyg tinggi dlm rokok boleh membhykan sel sel dlm bdn

A non-smoker inhales secondary smoke from a smoker.

Pelajar harus faham bhw Individuyg tidak merokok juga terdedah kpd pelbgai jenis penyakit
sekiranya mereka terdedah kpd asap rokok yg dibebaskan drpd perokok

This places the non-smoker, or a passive smoker at risk.

Keadaan ini boleh menimbulkan suatu risiko kpd individu itu sendiri

Smoking is the most preventable single cause of death in the world

Merokok adalah salah satu punca kematian

Tobacco smoke is, by far, the most important risk factor for

Tar merupakan kandungan bhn hitam yg tebal dlm asap rokok di mana tar adalah punca
diseases such as emphysema,

penyakit respirasi misalnya emfisema

heart disease,

penyakit jantung

asthma

bronchitis,

pneumonia

radang paru paru

and lung cancer.

lets look at the disease one by one

skrg cikgu akan terangkan setiap penyakit tersbt

emphysema is a condition where alveoli of the lungs are weakened and damaged by chemicals

emfisema adalah suatu keadaan dimn alveolus peparu menjadi lemah dan dirosakkan oleh

by chemicals such as cigarette smoke

bhn kimia spt asap rokok

students should understand that, when a person inhale the smoke,

pelajar harus fhm, bhw semasa penarikan nafas,


weakened alveoli will expand more than normal and the lungs become over inflated

alveolus yglemah akan mengembang lebih drpd biasa dan peparu menjadi terlebih kembang

Tar collects in the lungs as tobacco smoke cools

Tar akan terkumpul di paru-paru sebagai asap tembakau yg sejuk

tar is a mixture of many toxic chemicals

kerana tar merupakan campuran pelbgi jenis bhn tosik

Many of these substances are carcinogens, that is, they cause cancer.

Selain itu, karsinogen adalah sejenis bhn kimia yg juga boleh menyebabkan kanser

More than 40 types of compounds found in cigarette smoke, can cause cancer.

Lebih drpd 40 jenis bhn kimi yg terkandung di dlm asap rokok yg boleh menybbkn kanser

Nicotine in the tobacco causes an addiction to smoking.

Malah, kandungan tembakau akan menyebabkan ketagihan merokok

Carbon monoxide is also present in cigarette smoke.

Karbon dioksida juga hadir di dlm asap rokok yg akan mengurangkan kandungan oksigen di dlm
badan

It is a highly poisonous gas.....

Karbon dioksida merupakan gas yg sgt beracun


sulphur dioxide is acidic and damages lung tissues.

Seterusnya sulfur dioksida adalah gas berasid yg boleh mengakis system respirasi dan
merosakkan tisu tisu dlm bdn

It reduces the amount of oxygen in the blood

Gas ini akan mengurangkan kandungan oksigen di dlm darah

Other harmful substances that may enter our respiratory system

Cth bhn beracun lain ygboleh memudaratkan system respirasi ilaha

are industrial wastes

sisa sisa industry

These include cement dust, coal dust, sulphur dioxide and asbestos dust

Ini termasuk habuk,, dan asbut

All these have been linked to respiratory problems like

Semua ini telah dikaitkan dengan masalah pernafasan seperti

chronic bronchitis

bronchitis yg kronik

emphysema,

emfisema
asthma

and lung cancer

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