Question

Which process describes the ATP-requiring movement of extremely large substances out of a cell in pockets called vesicles?
A.exocytosis
B.endocytosis
C.phagocytosis
D.passive transport

Answer 1

Answer - A
Exocytosis is a process that expels substances out of the cell while utilizing energy for this process to occur.

Answer 2

Answer:

The correct answer would be A. exocytosis.

Exocytosis is a type of active transport in which large molecules are transported out of the cell with the help of transport vesicles.

The basic process of exocytosis can be explained as:

1. The cargo substances (substances which are required to be transported) are packaged into the vesicles.
2. The vesicles then move towards the plasma membrane.
3. They membranes of vesicles integrate or fuse with the plasma membrane.
4. The shipment or contents are released out of the cell.

Some of the substances which are transported through exocytosis are neurotransmitters, antigens, secretory proteins (such as antibodies, hormones, enzymes), cell membrane proteins et cetera.