One of the many functions of ____ is to span the plasma membrane and form channels that allow passage of molecules and ions into and out of the cell.
A) carbohydrates
B) nucleotides
C) lipids
D) proteins

Question

​One of the many functions of ____ is to span the plasma membrane and form channels that allow passage of molecules and ions into and out of the cell.
A) ​carbohydrates
B) ​nucleotides
C) ​lipids
D) ​proteins

Quizplus · Accepted Answer

Proteins, specifically integral membrane proteins, span the plasma membrane and form channels that allow molecules and ions to pass in and out of the cell. Carbohydrates, nucleotides, and lipids do not typically have this function.

​One of the Many Functions of ____ Is to Span

One of the Many Functions of ____ Is to Span