Page 1 Notes: Structural Features of Nucleus and Ribosomes

Flashcards covering nuclear structure, DNA organization, nucleolus, ribosomes, and rough ER based on Page 1 notes.

What is the double-layered membrane surrounding the nucleus called?

Nuclear envelope (double-layered nuclear membrane).

What are openings in the nuclear envelope called?

Nuclear pores.

What is the form of DNA inside the nucleus called?

Chromosomes/Chromatin (DNA).

Where are ribosomes assembled and ribosomal RNA synthesized?

Nucleolus.

What is the site of protein synthesis in the cell?

Ribosomes.

Where can ribosomes be located in a cell?

Free-floating in the cytoplasm or attached to the rough endoplasmic reticulum.

What is the role of ribosomes attached to the rough endoplasmic reticulum?

Synthesize proteins that are destined for secretion or for membranes.