Question

Question #53d63

Answer 1

Membrane, sap, chromatin, nucleolus and endosomes.

Explanation:

The nucleus consists of the following main parts:
(1) Nucleolemma or nuclear membrane (karyotheca)
(2) Nuclear sap or karyolymph or nucleoplasm 
(3) Chromatin network or fibres 
(4) Nucleolus 
(5) Endosomes.

Detailed descriptions of each part can be found at the source here:
http://www.biologydiscussion.com/nucleus/5-main-parts-of-nucleus-biology/491
The image is from the following site:
https://micro.magnet.fsu.edu/cells/nucleus/nucleus.html