Princeton Review

Biological Systems section (Chem/Phys) is the third section on the test. It includes questions from General Chemistry (about 35%), Physics (about 25%), Organic Chemistry (about 15%), and Biochemistry (about 25%). Further, the questions often test chemical and physical concepts within a biological setting:

true that a covalent bond weakens as its polarization increases. Therefore, one can conclude that the strength of an acid is proportional to the number of electronegative atoms in that acid

Typically, good things to highlight include the overall topic of a paragraph, unfamiliar terms, unusual terms, numerical values, hypothesis, and results.

can be used to summarize the paragraphs and to jot down important facts and connections that are made when reading the passage

25 percent of the science questions on the MCAT. Usually, Memory questions

Which of the following acetylating conditions will convert diethylamine into an amide at the fastest rate?

A) Acetic acid / HCl

B) Acetic anhydride

C) Acetyl chloride

D) Ethyl acetate

may require data retrieval, graph analysis, or making a simple connection. Explicit questions make up approximately 35−40 percent of the science questions on the MCAT;

The sensor device D shown in Figure 1 performs its function by acting as:

A) an ohmmeter.

B) a voltmeter.

C) a potentiometer.

D) an ammeter

If Experiment 2 were repeated, but this time exposing the cells first to Pesticide A and then to Pesticide B before exposing them to the green fluorescent-labeled estrogen and the red fluorescent probe, which of the following statements will most likely be true?

A) Pesticide A and Pesticide B bind to the same site on the estrogen receptor.

B) Estrogen effects would be observed.

C) Only green fluorescence would be observed.

D) Both green and red fluorescence would be observed

People who want to go to medical school have an inherent interest in biology; thus this subject, although vast, seems more manageable than all the others on the MCAT