Two Other Strategies to Keep Yourself on Track Even After a Low Grade 

Number 2:  Build Up the Rest of Your Resume and Score Highly on the MCAT 

This is a strategy that you should already should be implementing if you have a high GPA, but it is especially important if you cannot rely on a strong GPA to push you into an Admissions Board's consideration.  

If you show a lot of experience volunteering, impressive involvement with research studies, and other extracurricular activities, you can alleviate some of the sting of a low grade in one science course.  

The key point to remember is to evaluate what caused the low score in the first place. You want to be able to objectively view the situation and determine if you did not dedicate enough time to studying, or perhaps chose to sleep in instead of going to class and changing your habits.  

You need to make sure that the rest of your science grades are high, because multiple low grades suggest that you may just not be able to comprehend higher levels of science which, will put a red flag on your application.  

Do not spread yourself too thin, and make sure you do not let any of your extracurricular commitments interfere with your studying. A respectable GPA can still be achieved with a low score, but make sure you dedicate a large quantity of time to perfecting your MCAT preparation.

A high MCAT score can be considered to be your safety net to prevent your dreams of becoming a physician from crashing down from the cosmos. Ideally, you don't push that extra pressure onto yourself but in reality, you need to be aware of the circumstances that you have dug yourself into and use that as motivation to push you to study longer hours and prepare as hard as you can to ensure that you will dazzle on the MCAT to conceal a low GPA.  

Number 3:  Make Sure You Are Improving Your Grades 

A key fact that a lot of Medical Admissions' Boards do consider when they are determining which candidates to invite for interviews is if there was trend of improvement during their 4 years of studying.  

Medical Schools are tough to get into but they are realistic in their expectations as well. The Admissions Board team is not looking for robots that know all the answers already, and they actively expect students to have some type of a learning curve when they come in a new environment.  

A school will overlook a low science score in most cases as long as you show obvious signs of improvement. These signs of improvement over the course of your studies go a long way toward demonstrating that you have critiqued your studying habits and can keep up with the pace of classes as you progress to higher subjects.  

Showing improvement in the face of challenges is very important, because it demonstrates what every student will experience when they get into Medical School.  There will be a big learning curve and the techniques that you used to study effectively in college will become useless as you try to adjust to the even faster pace of Medical School.