The nucleus.
cell membranes and plasma membranes
Organelles are surrounded by membranes to provide a barrier that controls what substances can enter and exit the organelles. This helps to maintain the organelle's internal environment, protect its contents, and facilitate specific functions within the cell. Additionally, the membranes of organelles contain specialized proteins that are essential for the organelle's structure and function.
nucleus
2
Nucleus is surrounded by a double membrane.
Mitochondria are surrounded by membranes.They have two membranes.
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.
eukaryotes
A cell containing organelles surrounded by membranes that is found in most living plants and animals is a eukaryotic cell.
Mitochondria
true
Mitochondria are surrounded by membrane.Mitochondria have two membranes.