This repo generates anki cards for all ec numbers.
EC 1 has 25 second level
EC 1 has 130 third level
EC 1 has 1672 fourth level
EC 2 has 10 second level
EC 2 has 35 third level
EC 2 has 1635 fourth level
EC 3 has 13 second level
EC 3 has 44 third level
EC 3 has 1491 fourth level
EC 4 has 7 second level
EC 4 has 12 third level
EC 4 has 630 fourth level
EC 5 has 6 second level
EC 5 has 14 third level
EC 5 has 245 fourth level
EC 6 has 6 second level
EC 6 has 9 third level
EC 6 has 170 fourth level
Total second level: 67
Total third level: 244
Total fourth level: 5843
If fluency in a language means knowing over 10k words, learning the language of enzymes should be doable.