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MCAT 2015 Time Limits

November 21, 2014

While having an in depth understanding of the content tested by the new MCAT will be vital to your success on test day, there is something else you need to worry about.  Timing.  The MCAT tests your ability to solve problems, and solve them quickly, just as much as it tests your knowledge of organic chemistry and physics.

So just how much time will you have?  Lets take a look:

Critical Analysis and Reasoning

Number of Questions: 53

Section Time: 90 minutes

Minutes per Passage: 10

Minutes per Question: A little over 1.5 minutes

 

Psychological, Sociological, and Biological Foundations of Behavior

Number of Questions:

Section Time: 95 minutes

Minutes per Passage: 8 minutes

Minutes per Question: About 1.5 minutes

 

Biological Sciences

Number of Questions:

Section Time: 95 minutes

Minutes per Passage: 8 minutes

Minutes per Question: About 1.5 minutes

 

Physical Sciences

Number of Questions:

Section Time: 95 minutes

Minutes per Passage: 8 minutes

Minutes per Question: About 1.5 minutes

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MCAT Biology Question — Endospores

November 21, 2014

A patient develops an infection in his brain. The pathogen slowly spreads by forming endospores which disseminate through the cerebrospinal fluid. If the patient is examined later, which of the following spaces may be found to contain endospores:

 

I. The ventricles of the brain
II. The sympathetic chain ganglia
III. The spinal canal

 

A) I only
B) I and II only
C) I and III only
D) I, II, and III

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MCAT Physics Question — Swing

November 20, 2014

A child pushes, with F1, his sister on a swing, generating torque, τ1 which causes her to swing forward. If he then gets in a swing that hangs on a chain that is 20% shorter and his sister pushes with a force, F2, that is directed at a 30º angle to the swing, what is the relationship between F1 and F2 if they generate the same torque?

 

A) F1 = F2

B) 2.5 F1 = F2

C) F1 = 2.5 F2

D) 2 F1 = F2

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MCAT Chemistry Question — Titrant

November 19, 2014

The endpoint of a titration can be calculated requires that which of the following factors are known:

 

I. The moles of titrant added to solution

II. The molarity of titrant added to solution

III. The temperature of the titrant

 

A) I only

B) II only

C) I and II only

D) I, II, and III

 

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MCAT 2015 Webinar with Accepted.com

November 18, 2014

Whether you had the chance to join us for the MCAT webinar on November 18 or you had to miss it, you can catch up with the slides below.

Next Step Test Preparation provides one-on-one MCAT tutoring programs nationwide. 

MCAT Physics Question — Transverse Wave

November 18, 2014

Increasing which of the following would decrease the speed of a transverse wave, assuming all other variables are held constant?

 

A) wavelength

B) period

C) frequency

D) Planck’s constant

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MCAT Biology Question — Electron Transport Chain

November 17, 2014

A certain molecule acts by binding to cytochrome oxidase A3, the final enzyme in the electron transport chain. Administration of a large dose of this substance to a human would likely:

 

A) Lead to death due to an inability of the cell to pass electrons to oxygen, thus stopping aerobic respiration and asphyxiating the cells.
B) Lead to death due to an inadequate supply of ADP to accept a phosphate group at the ATP synthase enzyme.
C) Have no effect as cells would switch which macronutrient they metabolize to circumvent the blocked biochemical pathway.
D) Increase the cell’s ATP production as negative feedback would cause the cell to up-regulate anaerobic pathways.

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MCAT Chemistry Question — Recrystallization

November 14, 2014

A student is having trouble successfully carrying out a recrystallization procedure. The student can improve the odds of success by doing each of the following EXCEPT:

 

A) Adding a seed crystal of the purified substance that he is attempting isolate.

B) Cooling the solution very slowly.

C) Submerging the beaker in a cool water bath.

D) Scratching the side of the beaker.

 

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MCAT Biology Question — Caffeine Metabolism

November 13, 2014

A student studying caffeine metabolism learns that one of caffeine’s metabolites in the body is theophylline, which has the effect of relaxing smooth muscles of the bronchi. The student concludes that caffeine could be used to effectively treat asthma. Which of the following is true?

 

A) The student’s conclusion is correct.
B) The student’s conclusion is most likely correct, as a drug has effects both through its own action and through the action of its metabolites.
C) The student’s conclusion is most likely not correct, as caffeine has other metabolites which are direct antagonists of theophylline.
D) The student’s conclusion cannot be said to be correct or incorrect without more information about caffeine’s other metabolites and effects.

 

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MCAT Physics Question — AED

November 12, 2014

An automatic external defibrillator (AED) is simply a series of capacitors used to store a very large charge, which is then discharged through the patient’s chest in a short time. If the capacitor in an AED is fully charged and the AED is no longer connected to the power source, what will happen to the  energy stored in the AED if the dielectric (κ = 1.5) is removed?

 

A) increase by a factor of 1.5

B) increase by a factor of 2.25

C) decrease by a factor of 1.5

D) decrease by a factor of √1.5

 

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