What does describe mean in this question?

[TToe]

Describe three substrates of mitotic Cyclin-Dependent Kinases (CDKs) associated with the reorganization of the nuclear membrane during mitosis. Explain how the phosphorylation of these proteins affects their function and cell progression through mitosis.

I have found the three substrates but I don't what is meant by 'describe'.

[JackBean]

That depends where did you get it? Was it on test? Is it assignment for essay? Problably listing them with short description should be OK.