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Questions and Answers
Which parameter is used to measure the catalytic power of an enzyme?
What is the typical range for the turnover numbers of most enzymes per second?
Which enzyme has the highest turnover number among the ones listed?
What type of specificity does Lipase exhibit?
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Which enzyme shows specificity for peptide bonds with amino groups?
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'Highly Efficient' in the context of enzymes refers to:
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What term did Friedrich Wilhelm Kuhne coin in 1878?
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Which of the following is a correct property of enzymes?
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How do enzymes affect the rate of biochemical reactions?
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Which term defines enzymes that catalyze reactions without being consumed?
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What was the term 'Enzyme' derived from?
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Which type of enzyme is a small RNA molecule?
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Which type of specificity do enzymes exhibit when they are specific for a particular substrate?
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In terms of stereo specificity, which type of amino acids does L amino acid oxidase act on?
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What type of bond does α-Amylase act on in starch and glycogen?
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Which aspect of specificity is mentioned to have the highest level in enzymes?
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What is the biological importance of enzymes when it comes to metabolic processes?
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How can defective enzymes result in diseases according to the text?
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Study Notes
Enzyme Parameters and Properties
- The catalytic power of an enzyme is measured by its turnover number, which is the number of substrate molecules converted to product per unit time.
- The typical range for the turnover numbers of most enzymes is between 1-10,000 per second.
Enzyme Specificity
- Lipase exhibits substrate specificity, meaning it acts on specific substrates.
- Aminopeptidase shows specificity for peptide bonds with amino groups.
- Enzymes exhibit high substrate specificity, meaning they are specific for a particular substrate.
Enzyme History and Definition
- Friedrich Wilhelm Kuhne coined the term "enzyme" in 1878.
- The term "enzyme" was derived from the Greek words "en" meaning "in" and "zyme" meaning "yeast".
Enzyme Characteristics
- Enzymes are highly efficient, meaning they can catalyze reactions without being consumed.
- Enzymes are biocatalysts, which means they speed up biochemical reactions without being altered.
- Catalysts are defined as substances that catalyze reactions without being consumed.
- Ribozyme is a type of enzyme that is a small RNA molecule.
Enzyme Specificity Types
- Stereo specificity is a type of specificity where enzymes act on specific stereoisomers, such as L amino acid oxidase acting on L-amino acids.
- α-Amylase acts on α-1,4-glycosidic bonds in starch and glycogen.
Enzyme Importance and Diseases
- Enzymes play a crucial role in metabolic processes by catalyzing biochemical reactions.
- The biological importance of enzymes lies in their ability to regulate metabolic pathways.
- Defective enzymes can result in diseases, as they can disrupt normal metabolic processes.
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Description
Test your knowledge on enzyme specificity which includes cofactor specificity, substrate specificity, and optical specificity. Learn about enzymes that are specific for particular cofactors, substrates, or optical configurations.
