It is unchanged and can be used again for the same chemical reaction.
Explanation:
Enzymes are bio-catalysts which speed up the rate of chemical reactions by <u>lowering the activation energy</u> for the reaction and <u>producing binding energy</u>. But during chemical reaction the enzymes are unchanged and can be reused for the same chemical reaction. Most of the enzymes are proteins and without enzymes a biochemical reaction cannot take place.
For example: Amylase catalyzes the conversion of starch into sugar.
Unless they have a permit to inhabit endangered species. They shouldn't be caring for a endangered species, because they could be doing something to hurt it even if they don't mean to. By law they do confiscate them unless you have a permit.
Thymine has a methyl group and is better suited for the storage property of the DNA molecule as it is far more stable compared to Uracil. RNA contain Uracil instead of thymine so as to make differentiation of RNA molecule from DNA molecules easier.
