Chapter 3 / 4 short lessons
Membranes and transport
Choose the correct transport mechanism from the molecule, gradient and energy evidence.
H2 Biology / 9477 / 2027 syllabus
What do you think?
An uptake curve reaches a plateau. Does that prove active transport?
Lessons
0 of 4 marked as readThe fluid mosaic membrane
Explain membrane constituents and surface/internal membrane functions.
About 6 minDiffusion, channels and osmosis
Explain simple diffusion, facilitated diffusion and osmosis.
About 6 minMove a solute against its gradient
Explain energy coupling in active transport and distinguish primary and coupled routes.
About 6 minEndocytosis and exocytosis
Explain vesicle-mediated bulk transport and membrane continuity.
About 5 minWhat you will be able to do
- Explain membrane composition and compartments.
- Distinguish passive, active and bulk transport.
- Interpret transport experiments without overclaiming.
Spaced review
Remember this chapter
Save this chapter's 12 recall cards. We'll bring each one back just before you're likely to forget it, a few minutes a day.
Free account needed, so your cards follow you to any device. Notes and quick recall stay free without one.