Question

question 4 (1 point)
how do enzymes best function in living things? select all correct answers.
o a by allowing different substrates to react and form many different products.
o b by disrupting the bonds between two substrates.
o c by increasing the temperature of a chemical reaction.
o d by lowering the energy needed for a reaction to occur.
o e by increasing the time necessary for a reaction to occur.

Explanation:

Enzymes are biological catalysts. Catalysts work by lowering the activation energy (the energy needed for a reaction to occur) of a chemical reaction. This allows the reaction to happen more easily. Option a is correct as enzymes can act on different substrates to form various products. Option d is correct as lowering the energy (activation energy) is how enzymes facilitate reactions. Option b is incorrect as enzymes don't disrupt bonds in that way - they help in the reaction process which may involve bond - breaking as part of the overall reaction mechanism but not just disruption. Option c is incorrect as enzymes don't increase bonds between substrates. Option e is incorrect as enzymes decrease the time (by speeding up the reaction) not increase it.

Answer:

a. by allowing different substrates to react and form many different products; d. by lowering the energy needed for a reaction to occur.