Biology / Unit 2 Bio 0368 short lesson, about 20 seconds
Endocytosis
Captions available
The idea
Endocytosis is active transport bringing large particles into a cell by folding the plasma membrane around the particle and pinching off a new vesicle.
In practice
A cell taking in a large molecule this way spends energy forming and pinching off the vesicle, unlike smaller-molecule transport.
Where people slip
Endocytosis moves material by enclosing it in membrane, not by passing it through existing proteins.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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