Enzymes are proteins that speed up the rate of chemical reactions.Describe how a change of one of the bases in the gene for an enzyme could affect the functioning of that enzyme.
Question
Enzymes are proteins that speed up the rate of chemical reactions.Describe how a change of one of the bases in the gene for an enzyme could affect the functioning of that enzyme.
Solution
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DNA and Protein Synthesis: The sequence of bases in a gene determines the sequence of amino acids in a protein. This is because each set of three bases in a gene (a codon) codes for a specific amino acid. The sequence of amino acids in a protein determines its structure and function.
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Change in Base Sequence: If one of the bases in the gene for an enzyme is changed, this could alter the codon that the base is part of. This is known as a point mutation.
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Change in Amino Acid Sequence: If the codon is altered, this could change the amino acid that it codes for. This would result in a different amino acid being incorporated into the protein during synthesis.
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Change in Protein Structure: Proteins fold into complex shapes based on the sequence of amino acids. If a different amino acid is incorporated into the protein, this could change the way the protein folds.
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Change in Enzyme Function: The shape of an enzyme is critical to its function. If the shape of the enzyme is altered, this could affect the enzyme's ability to bind to its substrate and catalyze a reaction. In some cases, the enzyme might not function at all.
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Overall Effect: Therefore, a change in one of the bases in the gene for an enzyme could potentially have a significant effect on the functioning of that enzyme.
Similar Questions
Enzymes are catalysts that affect biological reactions. How do enzymes change the rates of reactions in the body?A.Enzymes decrease reaction rates by decreasing the energy of the products.B.Enzymes decrease reaction rates by lowering the activation energy.C.Enzymes increase reaction rates by lowering the activation energy.D.Enzymes increase reaction rates by increasing the energy of the reactants.
How do enzymes speed up the rate at which a biological reaction occurs?Group of answer choicesBy increasing the energy of the reactant molecules.By increasing the total amount of energy released by the reaction.By decreasing the amount of energy needed to proceed through the reaction.By increasing the energy of the product molecules.By making the reaction release energy rather than requiring energy.
What is the rate of Enzyme reaction and what are the factors that affect it.
How do enzymes affect the rate of reactions?Enzymes decrease the rate of reaction via the binding of substrates to the enzyme active site.Enzymes increase the rate of reaction without being used up. This is achieved by the binding of substrate to the enzyme active site, where the reaction is catalysed.Enzymes decrease the rate of reaction via the binding of substrates to the enzyme active sites. Enzymes act as reactants.Enzymes increase the rate of reaction via the binding of substrates to the enzyme active sites. Enzymes act as reactants.I DON'T KNOWSUBMIT ANSWER
Enzymes speed chemical reactions byMultiple Choicelowering the amount of reactants that are needed.maintaining temperature.lowering the energy required to start a chemical reaction.raising the temperature of the surroundings.supplying energy to the reaction process.
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