The answer is Lysosome The enzymes that are responsible for breaking down the debris are synthesized in ER and they form small compartments by fusing with acidic vesicles and became organelles called lysosome<span> (in animals) or </span>vacuole (in plants and fungi).
<em>zygote</em> is the diploid cell that results from the fertilization between an egg and sperm
<em>sperm</em> is the male reproductive cell that is responsible for a baby to born
The nicotine indirectly inhibit the CB1 or also known as the
Cannabinoid receptor type 1, which is the one responsible in obesity and
metabolic syndrome, thus, this would explain the weight gain associated with
people who quit smoke as if this is indirectly inhibited, it produces weight
gain.
