Two Kinds of Transport Mechanisms

Question 1

It is the type of transport system that requires an energy to move molecules from lower to higher concentration.

Answer 1

Active transport

Question 2

This transport does not require energy.

Answer 2

Passive transport

Question 3

It is the movement of water molecules through a plasma membrane from a region of low concentration
to a region of high concentration.

Answer 3

Osmosis

Question 4

It is the passive movement of particles (atoms, ions, or molecules) from a region in which they are in higher concentration to regions of lower concentration.

Answer 4

Diffusion

Question 5

It is a process by which substances are transported across cell membranes by means of protein carrier molecules.

Answer 5

Facilitated diffusion

Question 6

It is the number of particles per unit volume.

Answer 6

Concentration

Question 7

In facilitated diffusion the ____ while the ____.

Answer 7

Carrier changes its shape; channel creates a path