Mnemonics, maybe? Or try associating the things you're studying with something else--for instance, learning glucose metabolism, associate the different steps with a football game: quarterback passes to the running back for glycolysis (short play), or passes to the wide receiver for oxidative phosphorylation, the long play (bad example, I know, but hopefully you get the idea). Little things like that--for instance, I differentiate purines/pyrimidines by thinking purines = bigger molecule (shorter name), and pyrmidines are smaller (longer name). Then All Girls are Pure. Adenine, guanine, are purines. Then fill in the rest: thymine, uracil, and cytosine, are pyrimidines, by default. Sometimes I repeat a word hundreds of times in my head to make it permanently stick: for instance, glomerulus, I had to repeat that over and over in my head before I could remember it (otherwise, I might remember it slightly off: glomulus, glomorolus, etc.). Other than that, I don't know--find what works for you. I found that if I read text slowly and steadily, it sticks better.
Hope this helped somewhat. Good luck.
Edit: Another tip: switch up your study spots! Seriously, this has been proven to work. For instance, study some in the library, some at home, some at Starbucks, etc. Apparently your brain associates the different sensory inputs you get in the different environments with what you're learning at the time.
Here's a link to the article.
In one classic 1978 experiment, psychologists found that college students who studied a list of 40 vocabulary words in two different rooms — one windowless and cluttered, the other modern, with a view on a courtyard — did far better on a test than students who studied the words twice, in the same room. Later studies have confirmed the finding, for a variety of topics.