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Questions and Answers
How do enzymes behave under specific conditions?
How do enzymes behave under specific conditions?
- They change their genetic structure under high pressure
- They can be denatured by temperature and pH (correct)
- They remain unaffected by environmental factors
- They become more efficient at extreme temperatures
What are enzymes?
What are enzymes?
- Chemicals that denature under specific conditions
- Biological catalysts synthesized from genetic information (correct)
- Biological catalysts that are not protein in nature
- Biological molecules that slow down chemical reactions
What is the significance of isoenzymes?
What is the significance of isoenzymes?
- They are not affected by subcellular organelles
- They are identical forms of the same enzyme
- They explain metabolic differences between different tissues (correct)
- They have no clinical diagnostic applications
What do isoenzymes represent?
What do isoenzymes represent?
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Study Notes
Enzymes
- Enzymes are biological molecules, typically proteins, that speed up chemical reactions in living organisms.
- They are highly specific, meaning they only catalyze one specific reaction or a set of related reactions.
Behavior of Enzymes under Specific Conditions
- Enzymes' behavior is influenced by factors such as temperature, pH, substrate concentration, and inhibitors.
- Optimal temperatures and pH levels vary among enzymes, and deviating from these conditions can affect their activity.
- Substrate concentration affects enzyme activity, with higher concentrations increasing the reaction rate.
- Inhibitors can bind to enzymes, reducing their activity or preventing them from functioning.
Isoenzymes
- Isoenzymes are different forms of an enzyme that catalyze the same reaction, but have distinct physical and chemical properties.
- They are often specific to certain tissues, organs, or developmental stages, and can be used as diagnostic markers for diseases or tissue damage.
- Isoenzymes represent different genetic variants or post-translational modifications of the same enzyme, resulting in distinct protein structures and functions.
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