Question

When the cell excretes sodium from within, against the natural tendency of matter, it is performing _____. passive diffusion facilitated diffusion active transport pinocytosis

Answer 1

When the cell excretes sodium from within, against the natural tendency of matter, it is performing active transport.

Active transport is the movement of substances across a membrane from a region of lower concentration to a region of higher concentration against its concentration gradient or other impeding factor. When the cell excretes or transports something against its concentration gradient, active transport is required. Active transport uses either energy or electrochemical gradient.

Answer 2

The process of moving sodium against the natural equilibrium of the cells is described as active transport pinocytosis. This drives the bilogical system at the level of the cell that is known as the sofium pump.