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Blueprint MCAT Blog: MCAT Biology

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Types of Inhibition: Focus on the Basics
Michaelis-Menten enzyme kinetics, and especially keeping track of the various kinds of reversible enzyme inhibition, is one of the most challenging areas of biochemistry for many MCAT students. It’s extremely easy to get lost in the details of memorizing terminology, types of graphs, x-intercepts, y-intercepts, and so forth – but superficially memorized information is very READ MORE
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MCAT Genetics: A Quick Guide to Recognizing Modes of Inheritance
After a long day of studying for the MCAT, you decide to finish up with some quick biology practice. You turn to the first passage in your prep book and see this: “Disease X is a blood disorder caused by a mutation in a clotting factor gene. Jane’s father, sister, and brothers have Disease X, READ MORE
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Why is Gluconeogenesis Not Just Glycolysis in Reverse?
Glycolysis is widely understood to be one of the most important metabolic pathways to study for the exam, but students often have difficulty studying gluconeogenesis in parallel to glycolysis. On a certain level, it can be tempting to think of gluconeogenesis as the reverse of glycolysis, because glycolysis breaks down glucose into two pyruvate molecules READ MORE
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Advisor Office Hours – Biological and Biochemical Foundations of Living Systems
Dr. Anthony LaFond, one of our course instructors and a senior content developer, delves into the Biological and Biochemical Foundations section of the MCAT exam. He will give a brief overview of the section before discussing what subjects are tested. He will also highlight the pre-med classes your students will need to take to help READ MORE
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Biochemistry Sample Class July 2015
Biochemistry is not new to the MCAT, but it is a subject that you should be studying. Dr. Anthony LaFond, Next Step’s Director of MCAT Content, has over a decade of experience teaching the MCAT and is an excellent resource for you to utilize. He discusses Biochemistry on the MCAT in the recording below. Dr. READ MORE
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MCAT Biology Question — Carbon Reactions
In the Felkin model, a carbon which is originally achiral can undergo a reaction to generate a single enantiomer with 98% yield (with the remaining 2% generating the opposite enantiomer). This type of reaction is best described as: A) Chiral chromatography B) Racemization C) Asymmetric induction D) Unimolecular elimination   READ MORE
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MCAT Biology – Germ Layers
The lining of the digestive tract and the respiratory tract develops from which germ layer? I. Endoderm II. Mesoderm III. Ectoderm a) I only b) II only c) III only d) I and II   READ MORE
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MCAT Biology – Substrate Concentrations
Noncompetitive inhibition differs from uncompetitive inhibition in that a noncompetitive inhibitor binds to an allosteric site on the enzyme and prevents it from catalyzing a reaction, whereas uncompetitive inhibitors bind to the enzyme-substrate complex and prevent catalysis. Increasing the substrate concentration would have which of the following effects? A) Increasing impact of uncompetitive inhibitor and READ MORE