Chemical in Medicine and Health

Question 3:Photograph 2 shows fruits that are rich in antioxidants. (a) What is meant by antioxidants? (b) Explain the role of antioxidants in the human body. (c) Give three types of antioxidants and their natural resources. Answer:(a) Antioxidants are chemical compounds that can be obtained from chemical synthesis or natural plants. When antioxidants react with … Read more

Question 1:Photograph 1 shows two types of medical methods. (a) What are the types of medical approaches of M and N? (b) Give one health problem which can be treated using method M. (c) Give three types of medicines used in method N and their respective uses. (d) Method M is said to be used … Read more

Question 1:What is meant by active ingredients in health products? Answer:Active ingredients are specific components in a product that have effects on the cure or prevention of diseases. Question 2:Give two reasons for the use of health products in Malaysia. Answer:Intake of unbalanced diet/ Lack of nutrients in food served/ For normal growth and wellness/ … Read more

Question 1:What is meant by antioxidant substances? Answer:Antioxidant are chemical compounds that can be obtained from chemical synthesisor natural plants. Antioxidants are needed  by our body to slow down or to stop the oxidation process. Question 2:Give three examples of antioxidant substances found in food. Answer:Beta carotene/ Lutein/ Lycopene/ Vitamin C/ Vitamin E

Question 1:What are free radicals? Answer:Free radicals are atoms or molecules that lack one electron. Thus, making the atoms or molecules unstable, reactive and tend to attack other atoms or other molecules. Question 2:Explain how free radicals are formed. Answer:Free radicals are formed from the oxidation process that happens in the body due to internal … Read more

Question 1:State three methods of medicine currently in practice. Answer:Traditional medicine, modern medicine, complementary medicine Question 2:Name three types of modern medicine and give examples. Answer:• Analgesic: aspirin/codeine/paracetamol • Antibiotic: penicillin and streptomycin • Psychotherapeutic:− Stimulant: amphetamine− Antidepressant: imipramine / amitriptyline− Antipsychotic: tranquiliser / barbiturate Question 3:Lai Yee and her family went for a vacation … Read more