10.2 Free Radicals, 10.3 Antioxidant , 10.4 Health Product

Free radical are atoms or molecules that lack of (a)   which make the atoms or molecules unstable, reactive and tend to attack other atoms or melecules.

• A

• B

• C

• D

• A

• B

• C

• D

Which of the following statements is true about free radicals?

• Free radicals take electrons from human body cells and cause changes in the structure of DNA causing cell mutations

• Free radicals have excess electrons

• Free radicals are produced in the body only

• Free radicals are substances that are not needed by the body at all to ensure that all the processes in the body work properly

How are antioxidant substances helpful in maintaining a healthy body?

• Antioxidant substances have the ability to stabilise the effects of free radicals by filling empty electrons in free radicals

• Antioxidant substances have the ability to ensure that the number of free radicals is regulated by the amount needed by the body

• Antioxidant substances have the ability to break down excess fat in the body

• Antioxidant substances have the ability to inhibit the oxidation process in food

• A

• B

• C

• D

Haseef want to visit his sick friend at hospital. He brings banana as a souvenir. What should he do to make sure the banana does not easily rotten?

• Soaked in to sugar solution

• Soaked into lime juice

• Soaked into bicarbonate solution

• Soaked into salt solution

• A

• B

• C

• D

• A

• B

• C

• D

These are the things that should be noted when choosing health products EXCEPT

• Environmentally friendly products

• No side effects

• Does not use chemical synthetic

• The reaction of product is immediate