BIOMOLECULES AND ENZYMES

BIOLOGY

VITAMINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ are molecules that boost the immune system. They do so by protecting cells from harmful molecules called free radicals.
A
Antbodies
B
Surfactants
C
Anti free radicals
D
Antioxidants
Explanation: 

Detailed explanation-1: -Antioxidants are molecules that fight free radicals in your body. Free radicals are compounds that can cause harm if their levels become too high in your body. They’re linked to multiple illnesses, including diabetes, heart disease, and cancer. Your body has its own antioxidant defenses to keep free radicals in check.

Detailed explanation-2: -Recent clinical trials have found that antioxidant supplementation can significantly improve certain immune responses. Specifically, supplementation with vitamins C, E, and A or beta-carotene increased the activation of cells involved in tumor immunity in the elderly.

Detailed explanation-3: -Because free radicals lack a full complement of electrons, they steal electrons from other molecules and damage those molecules in the process. Antioxidants neutralize free radicals by giving up some of their own electrons. In making this sacrifice, they act as a natural “off” switch for the free radicals.

Detailed explanation-4: -Antioxidants, such as vitamins C and E and carotenoids, may help protect cells from damage caused by free radicals. Other naturally occurring antioxidants include flavonoids, tannins, phenols and lignans.

Detailed explanation-5: -Epidemiological prospective studies show that higher intakes of antioxidant-rich fruits, vegetables, and legumes are associated with a lower risk of chronic oxidative stress-related diseases like cardiovascular diseases, cancer, and deaths from all causes.

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