Return to MCAT® Blog
Homepage
MCAT Biology Question — Proteolysis
- by
- Jun 12, 2014
- MCAT Question of the Day
- Reviewed By: Liz Flagge
A cellular protein, Protein X, is translated during interphase and undergoes proteolysis during mitosis. Which formula describes the intracellular Protein X concentration?
(x is the independent variable, and a, b, and c are constants, and e is Euler’s constant)
a) [Protein X] = a(x+b)
b) [Protein X] = asin(bx+c)
c) [Protein X] = a(x+b)2
d) [Protein X] = aeb(x+c)
Explanation
Protein X is described as undergoing synthesis and destruction along with the cell-cycle. The correct formula describing the concentration must oscillate. Choice a) is linear, choice b) oscillates, choice c) climbs or descends parabolically, and choice d) exhibits exponential growth or decay. Only choice b) provides the correct qualitative behavior.
a) [Protein X] = a(x+b), incorrect, This choice is linear.
b) [Protein X] = asin(bx+c), correct.
c) [Protein X] = a(x+b)2, incorrect, This choice is parabolic.
d) [Protein X] = aeb(x+c), incorrect, This choice is exponential.
Want more MCAT practice?
We’ve got options for every schedule and learning style!
From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!
Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.
Related Posts
Search the Blog
Free Consultation
Interested in our Online MCAT Course, One-on-One MCAT Tutoring or Med admissions packages? Set up a free consultation with one of our experienced Senior Student Advisors.
Schedule NowPopular Posts
-
-
MCAT Blog What's on the MCAT? -
-
-
MCAT Blog How to Review MCAT Full Lengths
Free MCAT Practice Account
Need great MCAT practice?Get the most representative MCAT practice possible when you sign up for our free MCAT Account, which includes a half-length diagnostic exam and one of our full-length MCAT practice exams.
Learn More