The blank is the pathway of the cell

Answer: Endoplasmic Reticulum

Explanation: The Endoplasmic reticulum is called the 'Highway or the Pathway of the cell'. It transports the waste, the enzymes and all the other substances inside or outside the cell. There are 2 types of Endoplasmic reticulum; Smooth and rough ER. There functions are as follows:-

Smooth ER - It has lipids in the form of fats and no ribosomes

Rough ER - It has ribosomes i. e. proteins. It detoxifies the toxins.