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Questions and Answers
What is the primary function of catalase in the antioxidant defense system?
What is the primary function of catalase in the antioxidant defense system?
- To neutralize hydrogen peroxide (H₂O₂) by breaking it down into water and oxygen (correct)
- To denature the enzyme at extreme pH values
- To generate hydrogen peroxide (H₂O₂) during normal cellular metabolism
- To regulate gene expression at the transcriptional level
What is the effect of extreme pH values on catalase activity?
What is the effect of extreme pH values on catalase activity?
- It maintains the optimal temperature for catalase function
- It has no effect on catalase activity
- It increases the rate of catalase activity
- It denatures the enzyme, affecting its activity (correct)
What is the relationship between temperature and catalase activity?
What is the relationship between temperature and catalase activity?
- As temperature increases, catalase activity remains constant
- As temperature increases, catalase activity increases, but only up to a point (correct)
- Catalase activity is not affected by temperature
- As temperature increases, catalase activity decreases
What is the role of cis-elements in the promoters of amylase genes?
What is the role of cis-elements in the promoters of amylase genes?
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What is the optimal temperature range for catalase activity?
What is the optimal temperature range for catalase activity?
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What is the result of catalase denaturation at high temperatures?
What is the result of catalase denaturation at high temperatures?
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What is the role of regulatory elements in catalase gene expression?
What is the role of regulatory elements in catalase gene expression?
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What is the effect of oxidative damage on cellular components?
What is the effect of oxidative damage on cellular components?
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What is the significance of catalase in diseases associated with oxidative stress?
What is the significance of catalase in diseases associated with oxidative stress?
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What is the product of catalase breaking down hydrogen peroxide?
What is the product of catalase breaking down hydrogen peroxide?
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