What is the nucleus?
Cell control centre, large and oval in shape.
Do all cells have a nucleus?
Most but not all. Red blood cells are an exception.
Do all cells have one nucleus?
Most but not all, large cells like muscle cells can have multiple.
What is the nucleus enclosed by?
A double membrane called the nuclear envelope.
What are the openings in the nuclear envelope called?
Nuclear Pores
What is the nucleolus?
A small spherical body inside the nucleus that makes Ribosomes
What does the Nucleaus contain and control?
Dna and the synthesis of Proteins as carried out by the RER