Chromatography and centrifugal pump: what they have in common

1. Step 1. Chromatography — uses — Capillary action. Paper chromatography.
2. Step 2. Capillary action — is used in — Sponge. It absorbs by capillary action.
3. Step 3. Sponge — is made of — Cellulose. Cellulose sponges.
4. Step 4. Cellulose — is material for — Cellophane. Cellulose.
5. Step 5. Cellophane — is material for — Haemodialysis machine. Kolff’s membrane was a cellophane tube.
6. Step 6. Haemodialysis machine — has part — Centrifugal pump. A blood pump (peristaltic).

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