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Which one of the following statements is incorrect about enzyme catalysis?
- a)Enzymes are mostly proteinous in nature.
- b)Enzyme action is specific.
- c)Enzymes are denatured by ultraviolet rays and at high temperature.
- d)Enzymes are least reactive at optimum temperature.
Correct answer is option 'D'. Can you explain this answer?
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Which one of the following statements is incorrect about enzyme catal...
Incorrect Statement about Enzyme Catalysis:
The incorrect statement about enzyme catalysis is option 'D', which states that enzymes are least reactive at the optimum temperature.
Explanation:
Enzymes:
Enzymes are biological catalysts that increase the rate of chemical reactions without being consumed in the process. They are mostly proteinous in nature and play a crucial role in various metabolic processes occurring in living organisms.
Specificity of Enzyme Action:
Enzyme action is highly specific, meaning that each enzyme catalyzes a particular reaction or a set of closely related reactions. This specificity is due to the unique three-dimensional structure of the enzyme's active site, which allows it to bind specifically to its substrate(s).
Denaturation of Enzymes:
Enzymes can be denatured by various factors such as high temperature, extreme pH, and exposure to certain chemicals. However, the denaturation of enzymes occurs primarily at high temperatures and extreme pH values, rather than by ultraviolet rays. Ultraviolet rays do not have sufficient energy to break the bonds holding the enzyme's tertiary structure together.
Effect of Temperature on Enzyme Activity:
Enzyme activity is highly influenced by temperature. At low temperatures, the rate of enzyme-catalyzed reactions is generally slow. As the temperature increases, the rate of reaction also increases due to the increased kinetic energy of the molecules involved. However, there is an optimal temperature at which enzymes exhibit maximum activity. This temperature is known as the optimum temperature.
Key Points:
- Enzymes are mostly proteinous in nature.
- Enzyme action is specific, with each enzyme catalyzing a particular reaction or set of reactions.
- Enzymes can be denatured by high temperature and extreme pH, not by ultraviolet rays.
- Enzymes exhibit maximum activity at their optimum temperature.
Conclusion:
The incorrect statement in the given options is option 'D'. Enzymes are not least reactive at the optimum temperature. Instead, they exhibit maximum activity at their optimum temperature.
The incorrect statement about enzyme catalysis is option 'D', which states that enzymes are least reactive at the optimum temperature.
Explanation:
Enzymes:
Enzymes are biological catalysts that increase the rate of chemical reactions without being consumed in the process. They are mostly proteinous in nature and play a crucial role in various metabolic processes occurring in living organisms.
Specificity of Enzyme Action:
Enzyme action is highly specific, meaning that each enzyme catalyzes a particular reaction or a set of closely related reactions. This specificity is due to the unique three-dimensional structure of the enzyme's active site, which allows it to bind specifically to its substrate(s).
Denaturation of Enzymes:
Enzymes can be denatured by various factors such as high temperature, extreme pH, and exposure to certain chemicals. However, the denaturation of enzymes occurs primarily at high temperatures and extreme pH values, rather than by ultraviolet rays. Ultraviolet rays do not have sufficient energy to break the bonds holding the enzyme's tertiary structure together.
Effect of Temperature on Enzyme Activity:
Enzyme activity is highly influenced by temperature. At low temperatures, the rate of enzyme-catalyzed reactions is generally slow. As the temperature increases, the rate of reaction also increases due to the increased kinetic energy of the molecules involved. However, there is an optimal temperature at which enzymes exhibit maximum activity. This temperature is known as the optimum temperature.
Key Points:
- Enzymes are mostly proteinous in nature.
- Enzyme action is specific, with each enzyme catalyzing a particular reaction or set of reactions.
- Enzymes can be denatured by high temperature and extreme pH, not by ultraviolet rays.
- Enzymes exhibit maximum activity at their optimum temperature.
Conclusion:
The incorrect statement in the given options is option 'D'. Enzymes are not least reactive at the optimum temperature. Instead, they exhibit maximum activity at their optimum temperature.
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Community Answer
Which one of the following statements is incorrect about enzyme catal...
The enzyme activity rises rapidly with temperature and becomes maximum at definite temperature, called optimum temperature.
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Which one of the following statements is incorrect about enzyme catalysis?a)Enzymes are mostly proteinous in nature.b)Enzyme action is specific.c)Enzymes are denatured by ultraviolet rays and at high temperature.d)Enzymes are least reactive at optimum temperature.Correct answer is option 'D'. Can you explain this answer?
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Which one of the following statements is incorrect about enzyme catalysis?a)Enzymes are mostly proteinous in nature.b)Enzyme action is specific.c)Enzymes are denatured by ultraviolet rays and at high temperature.d)Enzymes are least reactive at optimum temperature.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following statements is incorrect about enzyme catalysis?a)Enzymes are mostly proteinous in nature.b)Enzyme action is specific.c)Enzymes are denatured by ultraviolet rays and at high temperature.d)Enzymes are least reactive at optimum temperature.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is incorrect about enzyme catalysis?a)Enzymes are mostly proteinous in nature.b)Enzyme action is specific.c)Enzymes are denatured by ultraviolet rays and at high temperature.d)Enzymes are least reactive at optimum temperature.Correct answer is option 'D'. Can you explain this answer?.
Which one of the following statements is incorrect about enzyme catalysis?a)Enzymes are mostly proteinous in nature.b)Enzyme action is specific.c)Enzymes are denatured by ultraviolet rays and at high temperature.d)Enzymes are least reactive at optimum temperature.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following statements is incorrect about enzyme catalysis?a)Enzymes are mostly proteinous in nature.b)Enzyme action is specific.c)Enzymes are denatured by ultraviolet rays and at high temperature.d)Enzymes are least reactive at optimum temperature.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is incorrect about enzyme catalysis?a)Enzymes are mostly proteinous in nature.b)Enzyme action is specific.c)Enzymes are denatured by ultraviolet rays and at high temperature.d)Enzymes are least reactive at optimum temperature.Correct answer is option 'D'. Can you explain this answer?.
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