Endo and exocytosis: A. Passive transport with the concentration gradient, requiring no energy.

B. Active transport of large molecules with the concentration gradient, thus requiring no energy.

C. Active transport of large molecules in and out of the cell. Requires energy.

C. Active transport of large molecules in and out of the cell. Requires energy.

Explanation:

endo- the formal definition is “endometrial glands and stroma existing outside the endometrial cavity”. Essentially, it is tissue that resembles the endometrium (lining of the uterus), that exists other places. Most often, it is found in the pelvic peritoneum, or the lining of our abdominal cavity.

Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell. Both endocytosis and exocytosis are active transport processes.