This threw me straight back to secondary school, we had a teacher with a fearsome reputation who was berating a class of mine for not revising efficiently, he said "you can't just open your book and learn by osmosis" and some very brave kid piped up with "it's not osmosis sir, that's the movement of water across a membrane. We'd be learning by diffusion, not osmosis". At the very least, this proved we'd been paying attention in biology!