Proteins embedded in the nuclear envelope that selectively allow substances to cross into and out of the nucleus form ____.
A)nuclear pores
B)passive transport proteins
C)receptors
D)nucleoplasm
E)ribosomes

Question

Quizplus · Accepted Answer

Nuclear pores are the channels formed by proteins embedded in the nuclear envelope that allow selected substances to cross into and out of the nucleus. Passive transport proteins, receptors, nucleoplasm, and ribosomes are not specifically involved in regulating substance movements across the nuclear envelope.

Proteins Embedded in the Nuclear Envelope That Selectively Allow Substances