Discussion Enzymes are used to speed up biochemical reactions that occur within the body. They act as a catalyst for specific substances and therefore reduce activation energy. A catalyst is a substance that speeds up the rate of a chemical reaction without being used up or altered, and therefore can be used repeatedly. Enzymes are also used to control cell metabolism by regulating the rate of biochemical reactions, this is because the amount of enzyme in a solution determines how fast a reaction can occur. An enzyme consists of complex chemicals that form precise, tertiary and quaternary protein structure consisting of long, linear chains of amino acids linked together with polypeptide bonds, which fold in such a way that they form a
For the effect of the pH on the peroxidase we did think that the pH5 was going to have the greatest amount of absorbance because it reacted well and it had the most enzyme. Overall our results are accurate and clear, but in order to improve the experiment we would have to perform it several more
Lactase Buffer solutions 4,7,9 Enzymes are organic catalysts that control the rate of chemical reactions in cells while not being permanently altered themselves. In general, enzymes speed up the rate of reaction by lowering the activation energy required to start reactions. Lactase is an enzyme used by the body to hydrolyze lactose, a disaccharide unique to mammalian milk, into the monosaccharaides, glucose and galactose. Lactose has been shown to aid in the absorption of several minerals, including calcium, magnesium, and zinc. .
Chelilim87 Lab Report Effects of Temperature PH and Cofactors on Enzyme Activity Introduction Enzymes are catalytic proteins they speed up chemical reactions without be changed up or altered permanently in the process. Various enzymes used for different methods, they act as catalyst by lowering the activation energy for the reaction. Enzymes have specific shapes in which they occur. Part of the conformation the active site of the enzyme, where the actual catalysis occurs in the cells. The specific molecule on which an enzyme functions is the substrate.
Enzymes are biological catalysts for all processes going on inside cells. 3. They are able to be used over and over again 4. They increase the rate of chemical reactions at lower temps and decrease the activation energy needed for metabolic
___T____ Enzyme reactions can be slowed or halted using inhibitors. 3. Circle the correct effect. Raising the temperature slightly will [ increase | decrease | not change ] the rate of reaction Boiling temperature will [ increase | decrease | not change ] the rate of reaction. Changing the pH toward the optimal pH will [ increase | decrease | not change ] the rate of reaction.
D) Phases are often shown for each compound but are not critical to balancing an equation. E) All of the above statements (a-d) are true. 8. Which of the following statments is not true of balancing a chemical equation? A) Subscripts in the reactants must be conserved in the products.
Experiment 8 is composed of liver at 370C and 2 mL H2O2. 370C is the approximate body temperature of a calf and therefore the enzymes should function well because they are exposed to optimum conditions. Just as we anticipated the reaction rate was high and based on observations we gave the reaction rate a 4. 11. Experiment 11 is composed of cold liver and 2 mL H2O2.
(2 marks) A drug of same size and shape, as that of a substrate, which fits into the active site of an enzyme will act as a competitive inhibitor and the reaction is termed as competitive inhibition. The drug will compete with the substrate molecule for the active site of an enzyme, thus, it will decrease the rate of substrate-enzyme reaction by binding to the active site of enzyme. The rate of competitive inhibition reaction is directly proportional to the concentration of inhibitor present. 2. Glucose travels in the plasma or liquid part of your blood but cholesterol (triglycerides) travel bound to protein carriers in the blood.
Enzymes are a type of protein which speeds up the chemical reactions which occur within an organism by lowering the activation energy required to start the reaction. 6. Lock and Key- Only a specific substrate is able to fit in a particular enzymes active site as the substrate is believed to be a perfect fit for the active site. Induced Fit- When a substrate binds to an enzyme’s active site, the enzyme temporarily changes shape to accommodate the