nucleus

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Images & Videos

The video thumbnail image shows an illustration of an animal cell next to a photo of a whale swimming in the oean.

How Are Plant Cells Different from Animal Cells?

Fluorescent confocal image of HeLa cells with green microtubules outlining cell shapes, red mitochondria, and blue nuclei.

plant cells and tissues

Cutaway illustration of a eukaryotic animal cell showing labeled internal structures, including the nucleus, nucleolus, mitochondria, endoplasmic reticulum, Golgi apparatus, and other organelles.

Illustration comparing three cell types: a round animal cell and an irregularly shaped plant cell, both showing labeled organelles, and an elongated bacteria cell with labeled structures such as flagella and capsule.

Side-by-side labeled diagrams of a typical animal cell and a plant cell, showing internal structures such as nucleus, mitochondrion, endoplasmic reticulum, and unique features like chloroplasts and cell wall in the plant cell.

Cutaway illustration of a plant cell showing labeled internal structures including the nucleus, nucleolus, chloroplast, mitochondrion, vacuole, endoplasmic reticulum, ribosomes, Golgi apparatus, cell wall, and other key organelles.

How different parts of a cell interact

nucleus: Media

biology

Videos

The video thumbnail image shows an illustration of an animal cell next to a photo of a whale swimming in the oean.

The Major Parts of an Animal Cell

From teeny-tiny ants to 200-ton whales, all members of the animal kingdom are composed...

Video: Encyclopædia Britannica, Inc.

How Are Plant Cells Different from Animal Cells?

How Are Plant Cells Different from Animal Cells?

All living things are composed of cells.

Video: Encyclopædia Britannica, Inc.

How different parts of a cell interact

How different parts of a cell interact

Learn about the different cell organelles, including the mitochondrion, the nucleus,...

Video: Encyclopædia Britannica, Inc.

Eukaryotic vs. Prokaryotic Cells: Key Differences Explained

Eukaryotic vs. Prokaryotic Cells: Key Differences Explained

Learn about the difference between prokaryotes and eukaryotes.

Video: Encyclopædia Britannica, Inc.

Observe a living plant cell undergoing mitotic cell division recorded by time-lapse photography

Observe a living plant cell undergoing mitotic cell division recorded by time-lapse photography

Time-lapse photography of a live plant cell nucleus undergoing mitosis.

Video: Encyclopædia Britannica, Inc.

Images

Nucleus

Nucleus

The nucleus of each of these onion cells, highlighted in dark purple, controls the...

© Ed Reschke—Stone/Getty Images

Fluorescent confocal image of HeLa cells with green microtubules outlining cell shapes, red mitochondria, and blue nuclei.

mitochondria

Mitochondria (red) are found throughout the cytoplasm of almost all eukaryotic cells...

© defun—iStock/Getty Images

plant cells and tissues

plant cells and tissues

Figure 5: Cell types and tissues.

Encyclopædia Britannica, Inc.

Cutaway illustration of a eukaryotic animal cell showing labeled internal structures, including the nucleus, nucleolus, mitochondria, endoplasmic reticulum, Golgi apparatus, and other organelles.

Eukaryotic cell

Cutaway drawing of a eukaryotic cell.

Encyclopædia Britannica, Inc.

Illustration comparing three cell types: a round animal cell and an irregularly shaped plant cell, both showing labeled organelles, and an elongated bacteria cell with labeled structures such as flagella and capsule.

Bacterial, animal, and plant cells compared

Bacterial cells differ from animal cells and plant cells in several ways. One fundamental...

Encyclopædia Britannica, Inc.

Side-by-side labeled diagrams of a typical animal cell and a plant cell, showing internal structures such as nucleus, mitochondrion, endoplasmic reticulum, and unique features like chloroplasts and cell wall in the plant cell.

Organelles of eukaryotic cells

A defining feature of eukaryotic cells is the presence of membrane-bound organelles...

Encyclopædia Britannica, Inc.

Cutaway illustration of a plant cell showing labeled internal structures including the nucleus, nucleolus, chloroplast, mitochondrion, vacuole, endoplasmic reticulum, ribosomes, Golgi apparatus, cell wall, and other key organelles.

Plant cell

Cutaway drawing of a plant cell, showing the cell wall and internal organelles.

Encyclopædia Britannica, Inc.

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