Antioxidant Quiz-1

1- Any atom/molecule that “steals/accepts” electrons from other molecules.

(a)  

2- Any atom (or atom within a molecule) with at least one unpaired electron in its outermost shell/ orbital.

(a)  

3- The imbalance between oxidants and antioxidants within the body due to antioxidant deficiency or increased reactive oxygen species (ROS)

(a)  

4- The first line of body defense against oxidative damage.

(a)  

5- one of the most important and efficient antioxidants in which one molecule of can converts 6 billion molecules of hydrogen peroxide.

(a)  

6- A selenium-dependent enzyme catalyzes the reaction of H2O2

(a)  

7- An enzyme which regenerates NADPH which creates a reducing environment.

(a)  

8- Carotenoids which are oxygenated and containing hydroxyl, methoxy, carboxyl, keto, or epoxy groups.

(a)  

9- This antioxidant mechanism of carotenoids {CAR + ROO* ----CAR*+ + ROO-} is,

(a)  

10- Provitamin A

(a)