QBANK Biochem Proteins & Enzymes #11

Posts: 93
Joined: Wed Mar 29, 2017 3:37 pm

QBANK Biochem Proteins & Enzymes #11

Postby PoincareConjecture » Fri Jan 12, 2018 11:17 am

I find this question very nuanced and though i agree with the explanation, when i looked at the question stem again, its asking for a molecule and a transition state is not a molecule?? What you think? Thank you
Site Admin
Posts: 520
Joined: Mon May 23, 2016 1:47 pm

Re: QBANK Biochem Proteins & Enzymes #11

Postby NS_Tutor_Andrew » Sun Jan 14, 2018 8:44 pm

Hi PoincareConjecture,

Yes, this is a tricky question that draws on a less commonly known aspect of how enzymes work, although when you think about it, it's logical that they will have a very high affinity for the transition state. (The Wikipedia article on transition-state analogs is interesting reading in this regard). To answer your specific question, though, the correct answer states that the researcher would develop a molecule that resembles the transition state, which is not quite the same as stating that the transition state is a molecule. In general, MCAT questions will tend to be worded in a way that sidesteps thorny theoretical/philosophical issues like the precise nature of a transition state.

Hope this help clarify things, and that your studying is going well!
Andrew D.
Content Manager, Next Step Test Prep.

Return to “General Discussion & FAQ”