The size of proteins studied by NMR is limited because
A) a small sample size is needed.
B) it is hard to determine the phases of diffracted X-rays.
C) the measurements of the distances between atoms are only approximate.
D) large molecules reorient slowly in solution.

Question

Quizplus · Accepted Answer

The reorientation of large molecules in solution occurs slowly, making it difficult to obtain an accurate measurement of the distances between atoms. This limits the size of proteins that can be studied by NMR.

The Size of Proteins Studied by NMR Is Limited Because