Generation of which of the following substances within the cell reduces the number of freeradicals?Select one:a. NADPH oxidaseb. Hydrogen peroxidec. Myeloperoxidased. Glutathione peroxidaseClear my choice
Question
Generation of which of the following substances within the cell reduces the number of freeradicals?Select one:a. NADPH oxidaseb. Hydrogen peroxidec. Myeloperoxidased. Glutathione peroxidaseClear my choice
Solution
The answer is d. Glutathione peroxidase.
Here's why:
Free radicals are unstable atoms that can cause damage to cells and lead to illnesses and the aging process.
a. NADPH oxidase is an enzyme that actually produces a superoxide, a type of free radical. So, it doesn't reduce the number of free radicals.
b. Hydrogen peroxide is a reactive oxygen species, which is a type of free radical. So, it doesn't reduce the number of free radicals.
c. Myeloperoxidase is an enzyme that produces hypochlorous acid, a potent oxidant. So, it doesn't reduce the number of free radicals.
d. Glutathione peroxidase is an enzyme that neutralizes harmful substances in the body, including free radicals. It does this by converting them into less harmful substances, such as water. So, it reduces the number of free radicals.
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