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Types of Amylase and Their Functions

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Questions and Answers

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?

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?

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?

To regulate plant development, maturation, and responses to environmental stresses Signup and view all the answers

What is the optimal temperature range for catalase activity?

37°C to 40°C Signup and view all the answers

What is the result of catalase denaturation at high temperatures?

A decrease in catalase activity Signup and view all the answers

What is the role of regulatory elements in catalase gene expression?

To respond to specific signals and stressors Signup and view all the answers

What is the effect of oxidative damage on cellular components?

It can damage proteins, lipids, and DNA Signup and view all the answers

What is the significance of catalase in diseases associated with oxidative stress?

It plays a critical role in preventing oxidative damage Signup and view all the answers

What is the product of catalase breaking down hydrogen peroxide?

Water (H₂O) and oxygen (O₂) Signup and view all the answers