Wye Knot
Looks likeBifidobacterium bifidum
Same build as Biff.
Bifid means split in two. Bifidobacteria branch, often into a Y, and they love fibres like inulin.
Pick a shape, add sneakers, choose a colour. The card tells you which real microbe you just built. The sneakers are not scientifically accurate. The shapes are.

Looks likeBifidobacterium bifidum
Same build as Biff.
Bifid means split in two. Bifidobacteria branch, often into a Y, and they love fibres like inulin.
Squint down a microscope and shape is the first clue. Here’s what each build is called.
Rods are bacilli, balls are cocci and spirals are spirilla. Spot the shape and you’re halfway to a name.
Groupings get names too: diplo- for pairs, strepto- for chains and staphylo- for clusters, from the Greek for a bunch of grapes.
Cartoon physics noticeCaps are optional. Microscopes aren’t: a lactobacillus is a few thousandths of a millimetre long.
Coming up next on Channel GG
Deep down, are you a rod or a Y? Let’s find out.