Question

2. Look at each diagram below and figure out if it is ACTIVE transport or PASSIVE transport or EQUILIBRIUM. Thearrow indicates (tells you) which way the molecules are moving.Diagram ADiagram BDiagram CDiagram DDiagram EDiagram F

Answer 1

Diagram A: Passive transport

Diagram B: Equilibrium

Diagram C: Active transport

Diagram D: Equilibrium

Diagram E: Active transport

Diagram F: Passive transport

Passive transport: The molecules go through the membrane from a place of higher concentration to a place of lower concentration according to the second law of thermodynamics, without the need to consume energy, until the system reaches the equilibrium.

Active transport: The molecules go through the membrane against the concentration gradient, with an energy cost to the cell.

Equilibrium: It is not static but dynamic, so some molecules may go through the membrane in both directions, but the result will be the same concentration in both sides of it.