Define the following term: Oxidative stress.

A. A situation in which there are too many free radicals and not enough antioxidants, leading to damage to important molecules.

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Additional definitions for context (not part of the question):

- An atom or group of atoms with an unpaired electron, which makes it unstable and highly reactive.
- A molecule that can donate an electron to stabilize and neutralize free radicals.
- The process of losing an electron, such as when a free radical steals an electron from a stable molecule.

Oxidative stress is an imbalance between free radicals and detoxifying systems. Free radicals cause chain reactions harming molecules, neutralized by antioxidants.

Explanation:

Oxidative stress refers to an imbalance in cells between free radicals and detoxifying systems. Free radicals, reactive oxygen species (ROS), cause damage by stealing electrons, leading to chain reactions that harm molecules. Antioxidants are molecules that neutralize free radicals by donating electrons.

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