Which structure is unique to eukaryotic cells? dna cell membrane ribosomes nucleus

The right option is; nucleus

Nucleus is the structure that is unique to eukaryotic cells

Eukaryotic cells are cells that have a definite nucleus and membrane-bound organelles (such as mitochondria, cytoplasm, and endoplasmic reticulum) that perform different functions in the cell. The nucleus is the most important organelle in eukaryotic cells. It contains the cell’s DNA (genetic material) and controls the synthesis of proteins and ribosomes. It also controls all the activities of the cell. The nucleus is surrounded by a double-membrane structure known as the nuclear envelope which is composed of two phospholipid bilayers.

Nucleus is unique to eukaryotic cells

Eukaryotes are organisms whose cells have a nucleus enclosed within membranes. All protists, fungi, plants and animals such as yeasts, fungi, Protozoa and Plant cells are examples of eukaryotes.

Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus which means the cell's DNA is surrounded by a membrane. Eukaryotic cells  also have membrane-bound organelles and rod-shaped chromosomes.

The nucleus is the most prominent organelle in a cell.  Nucleus​ is a membrane bound structure, containing the information of cell's hereditary and it also controls the cell's growth and reproduction. Its roles include regulating all activity, such as cellular metabolism and growth also maintaining the cell's DNA for transcription and replication.

All of the organelles in eukaryotic cells, such as the nucleus, endoplasmic reticulum, and mitochondria are located in the cytoplasm. Nucleus is found in the cytoplasm of a eukaryotic cell, but is not found in the cytoplasm of a prokaryotic cell. Eukaryotic cells have membrane-bound organelles like nucleus, while prokaryotic cells do not. Hence the nucleus is unique to eukaryotic cells

Grade:  9

Subject:  Biology

Chapter:  cell

Keywords:  DNA cell

the denominator has a very specific role.