Biology on monday

As I have stated as the title, I'm having a Biology test on monday. From the first day on the second term I hoped myself to achieve at least eight mark on every aspect especially science major. Monday's test will contain the digest system which also included nutrients and abnormality for human body (and cow). The digest system parts are not so difficult to follow, but the nutrients part man that is unbearably frustrating :(. Imagine it, you must memorize "almost" all nutritents that needed by your body ,its function, origin, abnormality cause by deficit, and many more. Whew I hoped to survive the first test....