PLZ HELP QUICKLY DUE SOON THXS:) What are the functions of an enzyme in metabolic reaction? (Choose all that apply.)
-bringing substrates closer together so they are more likely to react
-binding to ions to form a substrate
-alligning the parts of substrates that need to connect to form a product.
-lowering the energy it takes for a reaction to occur or speeding up a reaction.

Explanation:

Enzymes are biological catalysts of a protein nature, in charge of decreasing the energy needed for a metabolic reaction to occur.

One of the characteristics of enzymes is their specificity for a substrate. The union between the enzyme and the substrate occurs when the substrate binds to a place in the enzyme called the active site. For this to occur, the enzyme adapts the configuration of its active site so that it attaches to the substrate, functioning like a key in a lock.

The main function of the enzyme is to make a reaction faster and to reduce the amount of energy needed for that reaction.

For this reasons enzymes can:

Aligning the parts of substrates that need to connect to form a product.

Lowering the energy it takes for a reaction to occur or speeding up a reaction.

The other options are wrong because:

   - It is not an enzymatic function to bring the substrates closer together so that they can react.

   - Enzymes do not bind to ions to form substrates, they bind to a substrate to obtain a product.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.