What key molecule is needed in any Active Transport scenario? *

adenosine triphosphate (ATP)

Explanation:

Active transport mechanisms require the use of the cell's energy, usually in the form of adenosine triphosphate (ATP).

gametes or germ cells are haploid cells (example: sperm and ova) containing only one set (or n) number of chromosomes and autosomal or somatic cells are diploid cells containing 2n number of chromosomes.

i am going to guess that it is co2.