Podcast
Questions and Answers
Which of the following is a source of reactive oxygen species (ROS)?
Which of the following is a source of reactive oxygen species (ROS)?
- Antioxidants
- Glutathione peroxidase
- Catalase
- Mitochondrial respiration (correct)
Which of the following is a definition of prooxidants?
Which of the following is a definition of prooxidants?
- Chemicals that promote the production of antioxidants
- Chemicals that neutralize ROS
- Chemicals that induce oxidative stress (correct)
- Chemicals that inhibit the antioxidant system
What are some examples of antioxidants found in the biological system?
What are some examples of antioxidants found in the biological system?
- ONOO-, H2O2, neutrophil
- SOD, catalase, GPx, vitamins (correct)
- SOD, hydroxyl radical, NO
- ROS, catalase, GPx
What is the primary source of ROS in the vasculature?
What is the primary source of ROS in the vasculature?
Which organelle contains numerous enzymes that help to catalyze redox reactions, primarily in the role of lipid metabolism?
Which organelle contains numerous enzymes that help to catalyze redox reactions, primarily in the role of lipid metabolism?
Which of the following can cause oxidative stress at the cellular level?
Which of the following can cause oxidative stress at the cellular level?
What is the biochemical effect of oxidative stress?
What is the biochemical effect of oxidative stress?
Which of the following vitamins has the ability to react with various ROS and free radical species?
Which of the following vitamins has the ability to react with various ROS and free radical species?
Which form of Vitamin E is the most biologically active?
Which form of Vitamin E is the most biologically active?
What is the mechanism by which α-tocopherol reduces free radicals?
What is the mechanism by which α-tocopherol reduces free radicals?
What is the role of p53 in response to oxidative stress?
What is the role of p53 in response to oxidative stress?
What is the function of SOD in response to oxidative stress?
What is the function of SOD in response to oxidative stress?
What is the role of catalase in response to oxidative stress?
What is the role of catalase in response to oxidative stress?
What is the function of ferritin and ceruloplasmin in response to oxidative stress?
What is the function of ferritin and ceruloplasmin in response to oxidative stress?
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