HKDSE Biology - Active transport
Compulsory Part I Cells and Molecules of Life
Account for the movement of substances across membrane using the concepts of active transport.
Mechanism of active transport
Active transport is the movement of molecules from lower concentration region to higher concentration region ⏩ against concentration gradient.
Active transport is the way to transport molecules across cell membrane with the use of energy (ATP).
👆🏻 This photo showing how active transport works.
Na/K pump - example of active transport
👆🏻 This photo showing how active transport assist the transport of Na+ and K+ against concentration gradient.
Here are several misconceptions on HKDSE Biology student 👀
1. Active transport ❌ Facilitated diffusion
That's the end of this topic 👏🏻
Written by Bella | HKDSE Biology Specialist @ TUTTEE
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