Asked by Shanice Brown on Jun 13, 2024
Verified
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
Nuclear Pores
Complexes in the nuclear envelope that regulate the transport of molecules between the nucleus and the cytoplasm in cells.
Nuclear Envelope
A double membrane that constitutes the outer boundary of the nucleus. Pores in the membrane control which molecules can cross it.
- Acquire knowledge on the differences in composition and roles of cell membranes and their elements.
Verified Answer
VK
Vishal KumarJun 15, 2024
Final Answer :
A
Explanation :
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.
Learning Objectives
- Acquire knowledge on the differences in composition and roles of cell membranes and their elements.
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