cell-biology

1 free lesson tagged cell-biology across Science. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.

Science

beginner

The bacterial cell: what makes it different

A bacterium and one of your cells are both alive and share almost no structure beyond that. This lesson walks the bacterial cell part by part, the wall, the loop of DNA, the smaller ribosome, and shows why each difference is exactly what an antibiotic aims at.

10 steps·~15 min

The bacterial cell: what makes it different

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