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What are 2 important influences on enzymatic activity?
Heat and crupes
What other means does a cell use to control enzymatic activity?
Cells can control enzymatic activity through post-translational modifications such as phosphorylation, allosteric regulation, and feedback inhibition. They can also regulate enzyme synthesis and degradation, as well as by compartmentalizing enzymes in specific organelles or cellular locations.
What shows enzymatic activity?
Enzymatic activity is demonstrated by the ability of enzymes to catalyze biochemical reactions. This can be observed by changes in substrate concentration, product formation, or by measuring activity using specific assays such as spectrophotometry or mass spectrometry. Additionally, enzyme activity can be modulated by factors such as pH, temperature, and the presence of cofactors or inhibitors.
What are the relationships between enzymes and temperature?
Enzymes are sensitive to changes in temperature. Increased temperature usually increases the rate of enzyme-catalyzed reactions up to an optimal point, beyond which the enzyme may become denatured and lose its activity. Low temperatures may slow down enzymatic activity, as enzymes require a certain level of kinetic energy to function efficiently.
What substances are needed for enzymatic activity?
The enzyme is unchanged by the reaction.
What are 2 important influences on enzymatic activity?
Heat and crupes
What other means does a cell use to control enzymatic activity?
Cells can control enzymatic activity through post-translational modifications such as phosphorylation, allosteric regulation, and feedback inhibition. They can also regulate enzyme synthesis and degradation, as well as by compartmentalizing enzymes in specific organelles or cellular locations.
What are some factors that may influence enzyme activity?
Factors affecting enzyme activity1: Enzyme concentrationIf the quantity of enzyme is doubled, the enzymatic activity will also be doubled because more enzymes are now available to work. After a certain level of enzyme concentration, there will be no more increase in the enzymatic activity because all the substrate molecules are combined with an enzyme and the rate of reaction will stabilize.2: Substrate concentrationBy increasing substrate concentration, enzymatic activity increases. Increasing the substrate further without increasing the enzyme concentration will not affect the enzymatic activity because all the enzymes are occupied by a substrate molecule.3: pH valueSome enzymes require acidic surroundings, most require a more neutral condition for their activity. Change in the pH can change the enzyme's structure and enzyme become useless.4: TemperatureAn increase in temperature of 10 degree celsius doubles the enzymatic activity. Each enzyme has its own optimum temperature at which its enzymatic activity is maximum. Very high temperatures break the bonds that maintain shape of enzyme. If the enzyme denatures, the substrate can not fit in to the active sites and enzyme become useless.
What is autophosphorylation?
An autophosphorylation is the phosphorylation of a kinase protein catalyzed by its own enzymatic activity.
What shows enzymatic activity?
Enzymatic activity is demonstrated by the ability of enzymes to catalyze biochemical reactions. This can be observed by changes in substrate concentration, product formation, or by measuring activity using specific assays such as spectrophotometry or mass spectrometry. Additionally, enzyme activity can be modulated by factors such as pH, temperature, and the presence of cofactors or inhibitors.
When can refrigeration not applicable to preserve sample for enzymatic assay?
Refrigeration is not applicable to preserve sample for enzymatic assay because enzymes may lose their activity at extremely low temperatures as well. This may account for storing enzymes at 5° C or below without affecting the enzymatic activity permanently. (Anubhav, 2012)
Is uncompetitive inhibition an example of allosteric regulation in enzyme activity?
Yes, uncompetitive inhibition is an example of allosteric regulation in enzyme activity.
What are the relationships between enzymes and temperature?
Enzymes are sensitive to changes in temperature. Increased temperature usually increases the rate of enzyme-catalyzed reactions up to an optimal point, beyond which the enzyme may become denatured and lose its activity. Low temperatures may slow down enzymatic activity, as enzymes require a certain level of kinetic energy to function efficiently.
What substances are needed for enzymatic activity?
The enzyme is unchanged by the reaction.
What are the 2 conditions that destroy enzymatic activity by bond breakage?
1) Temperature 2)pH
What type of organic molecule may show enzymatic activity?
Enzymatic activity is primarily associated with proteins, which are organic molecules made up of amino acids. These proteins act as enzymes, catalyzing biochemical reactions by lowering activation energy. Some RNA molecules, known as ribozymes, can also exhibit enzymatic activity by catalyzing specific reactions, demonstrating that not only proteins but also certain nucleic acids can function as enzymes.
Are forms of cell regulation?
Enzyme activity, osmosis, and diffusion
