Question

question 7
2 pts
chemical reactions move at different speeds. when a chemical reaction is moving at a slow speed, what can be done to speed up the reaction?
adding an enzyme to decrease the activation energy of the reaction
decreasing temperature to prevent products from becoming denatured
adding an inhibitor to prevent enzymes from interfering with the reaction
decreasing ph to increase enzyme activity

which of the following best describes the relationship between the shape of enzymes and the reactions they catalyze?
enzymes change shape after they catalyze a reaction and become waste products
the shape of an enzyme depends on the reaction that it needs to catalyze
the shape of an enzyme determines which reaction it can catalyze
enzymes with more active sites can catalyze several reactions at once

Explanation:

For the first question, enzymes are biological catalysts that lower the activation - energy of chemical reactions, thus adding an enzyme can speed up a slow - moving reaction. For the second question, the shape of an enzyme determines its substrate specificity and the reaction it can catalyze due to the lock - and - key or induced - fit models of enzyme - substrate interaction.

Answer:

Question 7: Adding an enzyme to decrease the activation energy of the reaction
Which of the following best describes the relationship between the shape of enzymes and the reactions they catalyze: The shape of an enzyme determines which reaction it can catalyze