ANATOMY

GENERAL ANATOMY

INTRODUCTION TO GENERAL ANATOMY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens when a cell reaches equilibrium with its environment?
A
Nothing enters the cell
B
Nothing leaves the cell
C
Nothing enters or leaves the cell
D
Particles enter and leave at the same rate
Explanation: 

Detailed explanation-1: -What happens when a cell and its environment reach equilibrium through diffusion? The cell dies under equilibrium conditions: Molecules continue to move back and forth across the cell membrane; constantly changing equilibrium; The molecules stop moving across the ccll membrane.

Detailed explanation-2: -The end result is an equal concentration, or equilibrium, of molecules on both sides of the membrane. At equilibrium, movement of molecules does not stop. At equilibrium, there is equal movement of materials in both directions.

Detailed explanation-3: -Even when equilibrium is reached, particles of a solution will continue to move across the membrane in both directions. However, because almost equal numbers of particles move in each direction, there is no further change in concentration.

Detailed explanation-4: -A concentration gradient initially exists across the cell membrane. Equilibrium is reached when there is an equal amount of the substance on both sides of the membrane.

Detailed explanation-5: -Even when equilibrium is reached, particles do not stop moving across the cell membrane. Although it may seem as if the concentrations are not changing, nearly equal numbers of particles cross the membrane in both directions. This means that there is no net change in the concentration of the substances.

There is 1 question to complete.