the nucleus
the nucleus
the nucleus
a lysosome
The nucleus.In a eukaryotic cell, the nucleus is more or less spherical, and surrounded by a double membrane perforated by pores that allow large molecules through. Inside the nucleus are the chromosomes, each of which has either one or (after DNA replication) two molecules of DNA.
Nucleoid
The structure that holds a cell's DNA and is round is the nucleus. The nucleus is a membrane-bound organelle found in eukaryotic cells, and it contains the cell's genetic material organized into chromosomes. Its spherical shape helps facilitate the organization and regulation of genetic information.
Prokaryotic
eukaryotic
Eukaryotic cell
Eukaryotic cells contain a membrane-bound nucleus.
nifgf
This structure is likely a vesicle, which is a small membrane-bound sac found in the cytoplasm of the cell. Vesicles can contain various substances, including liquid, and are involved in transporting and storing molecules within the cell.