April 2021 0 29 Report
10. Berikut ini merupakan contoh kegunaan larutan penyangga dalam kehidupan sehari-hari yang benar adalah … A. Di dalam aspirin mengandung MgO untuk mentransfer kelebihan asam

B. Air liur mengandung penyangga carbonat untuk menetralisir asam dari fermentasi sisa-sisa makanan

C. Pada shampo, larutan penyangga digunakan untuk menjaga keasaman supaya tidak mencederai mata

D. Pada lotion bayi, larutan penyangga menjaga pH supaya tetap pH 9 (basa) untuk mencegah perkembangbiakkan bakteri

E. Obat tetes mata yang kita gunakan sehari-hari juga menggunakan system larutan buffer asam (PH = 3) untuk membunuh bakteri


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Take Care of Your Heart Heart disease is one of the most fatal diseases. Heart disease is usually caused by numerous factors such as high blood cholesterol, high blood pressure, obesity, smoking (which increases a person’s risk of a heart attack), unhealthy foods and drinks, lack of exercise and rest, and stress. However, people can minimize these risk factors if they modify their lifestyle. Modifying one’s lifestyle to become a healthy lifestyle is not difficult. It can involve doing some simple things in daily life. For example, people can learn to stop smoking, reduce sugar and salt intake and eat less fatty food. They should also learn to eat more vegetables and fruits rather than fast food and snacks. In addition, it is important to exercise regularly in order to stay fit and healthy. People should exercise for at least 30 minutes per session, three to four times a week. Please take note that people who have not done any exercises before are strongly advised to consult their doctor before starting an exercise program. Although most of the risk factors mentioned above are manageable, there are still other factors, such as the person’s age, gender, family history and cardiovascular disease that cannot be changed. Nevertheless, it has been proven that people can manage and reduce the risk of heart disease by having a healthy life style. Take care of your heart, and it will take care of your health. 1. What is the topic of the article? A. Take care of your heart and it will take care of you. B. Heart diseases and other diseases in our life. C. The highlight of heart diseases. D. How to manage our health. E. Having a healthy life style can reduce the risk of developing heart diseases. 2. What does paragraph 2 tell us? A. It tells us about the ‘dos and don’ts’ for healthy living. B. It highlights the risk of a bad and good lifestyle. C. It tells people to eat more vegetables and fruits. D. It tells people to stop smoking and start eating unhealthy foods. E. It tells us to eat less fatty foods and do more exercise. 3. Indulging in ______ is a part of unhealthy lifestyle. A. Eating apples B. Eating fish and chicken C. Eating fatty foods D. Doing exercise E. Sleeping 4. Which of the statement below is not true? A. It is advised that people exercise for 30 minutes per week. B. Changing lifestyle can minimize the risk of getting a heart attack. C. Consulting a doctor is necessary if we want to start doing exercise. D. Too much weight is one of the factors which cause heart disease. E. There are factors that we can control to avoid heart diseases. 5. What can people do to lead a healthy lifestyle? A. Eating meats and less vegetables. B. Indulging in smoking and drinking. C. Taking more salt and sugar. D. Stop smoking, eating less fatty foods and doing more exercise. E. Eating more red meat and less white meat.
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