How the heck do I study for a lab practical exam? I dont want to mess up on labs next semester. What am I doing wrong? I ddoing well on labs themselves, but I keep on screwing up on lab practical exams, which are major part of the grade (75%), hence that contributed to my low grade in bio 111 lab. Next semester we will be doing all animal stuff like dissecting frogs, etc..I noticed that the most of the questions on a lab practical are microscope related. Those are the ones I keep on getting wrong. How do I study for a question like that? basically, the pointer is at a certain part and you have to name the part.