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Large molecules may have reaction sites termed -----because they are attracted to water?
Hydrophilic sites. These sites are attracted to water molecules due to their polarity and can interact with the surrounding water molecules.
Why does the enzyme act as catalyst?
A) The enzyme does not actively take part in the reaction. It just indicates that the reaction is complete. B) Enzymes react with the substrate molecules to form products and become denatured in the process. C) Enzymes ensure that the reaction continues without inhibition even if conditions such as temperature and pH are changed. D) The products of the reaction are released from the active sites of the enzyme, allowing other substrate molecules to bind with the sites.
Does a enzyme act as a catalysts?
A) The enzyme does not actively take part in the reaction. It just indicates that the reaction is complete. B) Enzymes react with the substrate molecules to form products and become denatured in the process. C) Enzymes ensure that the reaction continues without inhibition even if conditions such as temperature and pH are changed. D) The products of the reaction are released from the active sites of the enzyme, allowing other substrate molecules to bind with the sites.
Alignment of molecules needed for a reaction to occur?
In a chemical reaction, molecules need to align properly so that their reactive sites are oriented correctly for bonding to occur. This alignment facilitates the collision of molecules in the correct orientation, allowing the necessary bond formation or breaking to take place. Proper alignment increases the likelihood of a successful reaction by bringing the reacting species into close proximity with the correct orientation.
What is the saturation point in an enzymatic reaction called?
The saturation point in an enzymatic reaction is called Vmax, which represents the maximum rate of reaction when all enzyme active sites are bound to substrate molecules. At Vmax, the enzyme is saturated with substrate and the rate of the reaction cannot increase further with an increase in substrate concentration.
The large ribosomal unit has binding sites for?
The large ribosomal unit has three binding sites for tRNA molecules: the A site (aminoacyl-tRNA), the P site (peptidyl-tRNA), and the E site (exit site). These sites are crucial for the proper assembly of amino acids into a growing polypeptide chain during translation.
How does an enzymes interact with a substrate?
Substrate molecules bind to enzymes at specific active sites thus activating the enzyme. The enzyme then reduces the activation energy required for a bond to form between the substrate molecules, so bonding (the reaction) proceeds at a faster rate.
What are active and binding sites of proteins?
The active site of a protein is the specific location where substrate molecules bind and undergo a chemical reaction. It typically contains amino acid residues that contribute to catalyzing the reaction. The binding site is a broader term that refers to any region on the protein where molecules can bind, not only for catalysis but also for other functions such as regulatory interactions.
How does an enzyme catalyze a reaction?
An enzyme catalyzes a reaction by lowering the activation energy required for the reaction to occur, making it easier and faster for the reaction to take place. This is achieved by binding to the reactant molecules and facilitating their interaction, leading to the formation of the product. Enzymes are specific in their action, as they have active sites that fit specific substrates, allowing for precise and efficient catalysis of reactions.
The rate of reaction between hcl and marble chips?
The rate of reaction between HCl and marble chips is dependent on factors such as the concentration of the acid, the surface area of the marble chips, and the temperature of the reaction. As the concentration of the acid increases, the rate of reaction also increases due to more collisions between the acid molecules and the marble chips. Similarly, a higher temperature increases the kinetic energy of the particles, leading to more collisions and a faster reaction rate. The surface area of the marble chips affects the rate of reaction by providing more sites for acid molecules to react with, which speeds up the reaction.
How does mass effect the rate of reaction between liver and hydrogen peroxide?
The mass of liver affects the rate of reaction with hydrogen peroxide due to the availability of catalase, the enzyme responsible for breaking down hydrogen peroxide into water and oxygen. A larger mass of liver provides more catalase molecules, increasing the number of active sites for the reaction, which can enhance the reaction rate. Conversely, a smaller mass means fewer enzyme molecules, potentially slowing the reaction. Therefore, there is a direct relationship between the mass of liver and the rate at which hydrogen peroxide is decomposed.
How does the rate of a reaction depend on the orientaion of the reactants when they collide?
The rate of a reaction is significantly influenced by the orientation of reactants during collisions because only certain orientations allow effective interactions between the reacting particles. When molecules collide, they must align in a specific way for their reactive sites to interact properly, leading to the formation of products. If the orientation is unfavorable, even if the molecules collide with sufficient energy, the reaction may not occur. Therefore, proper alignment increases the likelihood of successful collisions, enhancing the overall reaction rate.
