_52. Why are enzymes essential to organisms?
a. They are catalysts for biochemical reactions in cells
b. They provide short term and long-term energy for the cells
c. They provide instructions for protein synthesis and determine traits
d. They create semipermeable barriers in the cell that separates the inside and outside of the cell.

Option a. They are catalysts for biochemical reactions in cells, is the correct answer.

Explanation:

Enzymes essential to organisms because they are catalysts for biochemical reactions in cells. Catalyst are substances which increases the speed of the chemical reaction. Enzyme attached to the surface of the substrate and speed up the process of chemical reaction which occurs inside the cell and detached after the completion of process.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.