eukaryotes
animal or plant cell
Organisms that are composed of unstructured cells surrounded by membranes are prokaryotic cells. A prokaryotic cell is a single-celled organism like an amoeba.
No, a prokaryote is a cell that does not have a nucleus or other organelles surrounded by membranes. Bacteria are prokaryotes.
Archaea have no nucleus
Eukaryotes have a nucleus, Archaea do not.
The nucleus.
There isn't a specific number of membranes that a eukaryote has, mainly because it is unknown how many organelles are in a cell and how many cells are in an organism. A eukaryotic cell is surrounded by one plasma membrane, but most organelles within the membrane are also covered with membranes, sometimes two in case of mitochondria or chloroplast.
nucleus
The nucleus is surrounded by two types of cell membranes, the inner and outer nuclear membranes. The nucleus can also float around in the cytoplasm.
The organelle surrounded by a double layer of membranes is typically the nucleus in eukaryotic cells. This double membrane is known as the nuclear envelope, which separates the contents of the nucleus from the cytoplasm. It contains nuclear pores that regulate the exchange of substances between the nucleus and the cytoplasm. Other organelles, such as mitochondria and chloroplasts, also have double membranes.
No, the nucleus is a membrane-bound organelle that contains the genetic material of a cell, such as DNA. It is surrounded by a double membrane called the nuclear envelope, which separates the nucleus from the cytoplasm of the cell.
Eukaryotic cells have a nucleus surrounded by its own membrane (nuclear envelope) and various other organelles with their own membranes, such as mitochondria, endoplasmic reticulum, golgi apparatus, and lysosomes. These cells are found in plants, animals, fungi, and protists.