10 Questions
What is the term used to describe the movement of molecules across the cell membrane without requiring cellular energy?
Passive transport
At equilibrium, what happens to the concentration of the substance on both sides of the cell membrane?
It remains the same
What type of molecules pass through cell membranes most easily due to their properties?
Small and uncharged molecules
How do proteins in the cell membrane facilitate the movement of certain molecules?
By acting as carriers or channels
Which type of transport involves the use of special protein carriers to help molecules move across the membrane?
Facilitated diffusion
What is the term used to describe the movement of molecules across the cell membrane without requiring cellular energy?
Passive transport
Why do small and uncharged molecules pass through cell membranes most easily?
Because they can dissolve in the lipid environment of the membrane.
How do proteins in the cell membrane help facilitate the movement of certain molecules?
By acting as carriers or channels.
What happens at equilibrium in terms of the concentration of a substance on both sides of the cell membrane?
The concentration of the substance is the same on both sides of the membrane.
Why do some large molecules and charged ions seem to pass through cell membranes quickly?
Due to protein carriers or channels in the membrane.
Test your knowledge on the process of diffusion across the cell membrane and how equilibrium is achieved. Understand the concept of molecules moving towards areas of lower concentration until reaching a state of balance.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
