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Questions and Answers
What is the principal source of defensive pro-oxidants generated in the respiratory burst of neutrophils?
What is the principal source of defensive pro-oxidants generated in the respiratory burst of neutrophils?
- Nitric oxide synthases (NOS)
- Xanthine oxidase (XO)
- NADPH oxidase (NOX)
- Reactive species (correct)
Which of the following is NOT a potential cause of oxidative stress?
Which of the following is NOT a potential cause of oxidative stress?
- Biochemical processes leading to the production of reactive species
- Limited capabilities of endogenous antioxidant systems
- Exposure to damaging agents like environmental pollutants
- Consumption of antioxidant-rich foods (correct)
What plays a vital role in preserving the correct functionality of cellular vital functions?
What plays a vital role in preserving the correct functionality of cellular vital functions?
- Oxidative damage
- Redox equilibrium (correct)
- Reactive species
- Antioxidants
Oxidative stress can lead to damage in which of the following cellular biomolecules?
Oxidative stress can lead to damage in which of the following cellular biomolecules?
Which enzyme is enzymatically responsible for the production of reactive species?
Which enzyme is enzymatically responsible for the production of reactive species?
What are reactive oxygen and nitrogen species (ROS/RNS) known to damage under oxidative stress?
What are reactive oxygen and nitrogen species (ROS/RNS) known to damage under oxidative stress?
What are some examples of enzymatic scavengers of reactive oxygen species (ROS) mentioned in the text?
What are some examples of enzymatic scavengers of reactive oxygen species (ROS) mentioned in the text?
How is oxidative damage typically assessed according to the text?
How is oxidative damage typically assessed according to the text?
Why are clinical studies required to include multiple biomarkers when assessing antioxidant status and oxidative stress?
Why are clinical studies required to include multiple biomarkers when assessing antioxidant status and oxidative stress?
Which type of biomarkers are mentioned as indicators of radical-induced damage in biological tissues and fluids?
Which type of biomarkers are mentioned as indicators of radical-induced damage in biological tissues and fluids?
Why are antioxidant enzymes considered important according to the text?
Why are antioxidant enzymes considered important according to the text?
What is the main cause of oxidative stress in the human body?
What is the main cause of oxidative stress in the human body?
Which system in the human body regulates the levels of free radicals to maintain physiological balance?
Which system in the human body regulates the levels of free radicals to maintain physiological balance?
What is the consequence of excessive free radicals under conditions of oxidative stress?
What is the consequence of excessive free radicals under conditions of oxidative stress?
Which organelle is identified as the primary source of reactive oxygen species in all cell types?
Which organelle is identified as the primary source of reactive oxygen species in all cell types?
How can hydrogen peroxide (H2O2) generate the highly reactive hydroxyl radical (HO ) in the presence of certain ions?
How can hydrogen peroxide (H2O2) generate the highly reactive hydroxyl radical (HO ) in the presence of certain ions?
What is a potential application of biomarkers of oxidative stress in humans?
What is a potential application of biomarkers of oxidative stress in humans?
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