Protein
Both mainly and exclusively of Proteins.
"Nuclear pores are large protein complexes that cross the nuclear envelope, which is the double membrane surrounding the eukaryotic cell nucleus."
proteins form pores in order to let any substances which are not soluble in lipids still able to pass from one end of the membrane to the other.
nuclear envelope
NO
protein
Both mainly and exclusively of Proteins.
Openings in the nuclear membrane are called "pores"
Cell membrane pores are made up of protein.
Yes, materials move into the nucleus through pores in the nuclear membrane.
pores
plastids
Phospholipid :)
They are called pores.
"Nuclear pores are large protein complexes that cross the nuclear envelope, which is the double membrane surrounding the eukaryotic cell nucleus."
pores
Nucleus is enclosed in double walled nuclear membrane. Nuclear membrane at certain distance have pores in them which are called nuclear pores. Nuclear pores are very selectively permeable.