Question

Что не влияет на скорость ферментативной реакции? а)Температураб)Концентрация продукта в)Концентрация субстрата г)Концентрация фермента ​

Answer 1

Ответ:

Ответ В

Объяснение:

Концентрация субстрата (СE) С ростом концентрации субстрата скорость ферментативной реакции увеличивается до определенного предела - до тех пор, пока не будут заняты все активные центры ферментативной. Дальнейшее увеличение концентрации субстрата на скорость реакции не влияет

Answer 2

Factors Affecting the Speed of Enzymatic Reactions

Enzymatic reactions are influenced by various factors that can either increase or decrease the rate at which the reaction occurs. The speed of an enzymatic reaction can be affected by factors such as temperature, substrate concentration, product concentration, and enzyme concentration. However, among the options provided, the concentration of the product does not directly affect the speed of the enzymatic reaction.

Factors that Affect Enzymatic Reaction Speed

1. Temperature: Temperature plays a crucial role in enzymatic reactions. As the temperature increases, the rate of the reaction generally increases due to the higher kinetic energy of the molecules involved. However, extremely high temperatures can denature the enzyme, rendering it inactive. Similarly, low temperatures can decrease the rate of the reaction as the kinetic energy decreases. Therefore, there is an optimal temperature range at which the enzyme functions most efficiently.

2. Substrate Concentration: The concentration of the substrate, which is the molecule that the enzyme acts upon, can affect the speed of the enzymatic reaction. As the substrate concentration increases, the rate of the reaction also increases until it reaches a point where all the enzyme molecules are saturated with substrate molecules. At this point, further increases in substrate concentration will not increase the reaction rate, as the enzyme molecules are already working at their maximum capacity.

3. Enzyme Concentration: The concentration of the enzyme itself can influence the speed of the enzymatic reaction. Generally, an increase in enzyme concentration leads to an increase in the reaction rate, assuming that the substrate concentration is not limiting. This is because a higher enzyme concentration provides more active sites for the substrate molecules to bind to, resulting in more frequent collisions and a higher reaction rate.

Conclusion

In summary, the speed of an enzymatic reaction can be influenced by various factors, including temperature, substrate concentration, and enzyme concentration. However, the concentration of the product does not directly affect the speed of the enzymatic reaction. It is important to note that the specific details and interactions between these factors can vary depending on the enzyme and the reaction being studied.