essay writing at uni - business management degree

Hey, I have just started my first year at university and I have my exams soon, I take Business (management). And I was just wondering what the kind of structure is for essay writing compared to a-levels, I'm just a bit unsure on how to lay it out and how long it has to be. Especially as I have a lot of in-person exams so I won't be able to research them. Thank you for any help!

Hey, I have just started my first year at university and I have my exams soon, I take Business (management). And I was just wondering what the kind of structure is for essay writing compared to a-levels, I'm just a bit unsure on how to lay it out and how long it has to be. Especially as I have a lot of in-person exams so I won't be able to research them. Thank you for any help!