The answers are" 2. Less than 7. 4. The bonds holding the shape of the enzyme. Factors affecting Enzyme Activity. More than 7. The fact that they aren't changed by participating in a reaction distinguishes catalysts from substrates, which are the reactants on which catalysts work.
True...they lower the activation energy required for a reaction and therefore increase the rate of the reaction. lost. pH Temperature. In general, the lower amount of activation energy that a potential reaction has, the faster the rate of reaction will be. enzyme concentration). Enzymes work by converting substrates into products. this is also known as equilibrium.This occurs because the substrate is being broken down by the exact same amount of enzyme. When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as the hydrogen peroxide (H 2 O 2) decomposes into water (H 2 O) and oxygen (O 2).However, if the liver is cooked first, the reaction fails to occur. More than 7. Catalysts (e.g., enzymes) lower the activation energy of a chemical reaction and increase the rate of a chemical reaction without being consumed in the process. The activity of an Enzyme is affected by its environmental conditions.Changing these alter the rate of reaction caused by the enzyme. Enzymes do NOT change the K eq of a reaction. If the environment is outside its optimal range, the enzyme rate of reaction will decrease. When heated too much, enzymes (since they are proteins dependent on their shape) become denatured.

An enzyme increases the rate of the reaction by lowering the activation energy needed for the reaction. Enzymes will normally increase the rate of a reaction as they lower the activation energy needed for the reaction to take place thus increasing the speed. Enzymes speed up chemical reactions by lowering activation rates. Alkaline pH. What are the factors affecting the rate of reaction (how well the enzyme works)? The activity of an Enzyme is affected by its environmental conditions.Changing these alter the rate of reaction caused by the enzyme. Placing an enzyme in an environment with its optimal pH will increase the rate of reaction. A catalyst is a chemical that increases the rate of a chemical reaction without itself being changed by the reaction. When the temperature drops, the enzyme regains its shape. 1) CO 2 + H 2 O ← Carbonic anhydrase H 2 CO 3 {\displaystyle {\ce {CO2{}+H2O<-[{\text{Carbonic anhydrase}}]H2CO3}}} (in lungs ; low CO 2 concentration) (2) The rate of a reaction is dependent on the activation energy needed to form the transition state which then decays into products. A catalyst is a substance which will decrease the activation energy for a reaction. Enzymes do not change ΔG, the net change in free energy. Enzymes increase reaction rates by lowering the energy of the transition state. An enzyme is a protein produced by the body in various parts like the pancreas, salivary gland etc. The rate of a reaction decreases as temperature decreases because the enzymes become less active. Enzymes speed up chemical reactions by lowering activation rates.