Cell Nucleus Collection

Plant cell
False-colour transmission electron micrograph (TEM) of a cell in the root tip of a maize plant, Zea mays. Plant cells are distinct from animal cells in having an additional external envelope

Skin anatomy, artwork
Skin anatomy. Artwork of a section through human skin, showing the flattening of skin cells as they rise to the dead keratinised surface layer (top) from the living layer below (the dermis)

Cytoskeleton in unicellular parasite, SEM C018 / 0518
Cytoskeleton in unicellular parasite, coloured scanning electron micrograph (SEM). All cells have a support and transport network called the cytoskeleton

Genetic metaphase analysis C019 / 0289
Genetic metaphase analysis. Close-up of a microscope being used in a genetics laboratory to analyse the metaphase stage of cell division

Genetic metaphase analysis C019 / 0288
Genetic metaphase analysis. Equipment used in a genetics laboratory to analyse the metaphase stage of cell division. During this stage

Eukaryotic cell nucleus, artwork
Eukaryotic cell nucleus. Artwork of the internal structure and contents of the nucleus of a eukaryotic cell. The nucleus has been sectioned in half

Chromatin remodelling factor and DNA C015 / 5156
Chromatin remodelling factor and DNA, molecular model. The strands of DNA (deoxyribonucleic acid) are at left and right (both red and green). This chromatin remodelling factor (purple) is ISW1a

Chromatin remodelling factor and DNA C015 / 5155
Chromatin remodelling factor and DNA, molecular model. The strands of DNA (deoxyribonucleic acid) are at left and right (pink-yellow and green-orange). This chromatin remodelling factor is ISW1a

Importin protein complexed with enzyme C015 / 5149
Importin protein complexed with enzyme, molecular model. Human importin13 (purple) complexed with SUMO-conjugating enzyme Ubc9 (red)

Importin protein complexed with enzyme C015 / 5148
Importin protein complexed with enzyme, molecular model. Human importin13 (green) complexed with SUMO-conjugating enzyme Ubc9 (pink)

Human chromosomes and nucleus, SEM
Human chromosomes and nucleus, coloured scanning electron micrograph (SEM). Chromosomes are a packaged form of the genetic material DNA (deoxyribonucleic acid)

LM of a stoma on a Tradescantia leaf
Light micrograph of the surface of a leaf of the spider wort plant, Tradescantia, showing a single stoma (oval body, centre)

Cell mitosis. Confocal fluorescence light micrograph composite showing 6 stages of mitotic cell division. At far left, the cell has completed the first stage of cell division known as interphase in

Virus replication cycle, artwork. The cycle starts at upper centre, as virus particles (orange) enter a cell (blue). Once in the cell the viral genetic material, deoxyribonucleic acid (DNA, green)

Cell organelles, TEM
Cell organelles. Coloured transmission electron micrograph (TEM) of several organelles in an animal cell. At centre, the nucleus (dark purple, round) contains the cells genetic material (DNA)

DNA nucleosomes, molecular model
DNA nucleosomes. Molecular model of four DNA (deoxyribonucleic acid) nucleosomes, known as a tetranucleosome. Nucleosomes are the fundamental repeating units used to package DNA inside cell nuclei

Pyramidal neurons, light micrograph with Nissl staining. This sample, from a human brain, shows two pyramidal neurons. Pyramidal neurons (nerve cells)

Plant cells, light micrograph. These cells are from a spiderwort (Tradescantia) plant. The rigid shape of a plants cell wall is one of the features that distinguishes it from animal cells

DNA nucleosome, artwork
Artwork of a molecular model of a DNA nucleosome, the repeating unit used to package DNA (genetic material) inside the nucleus of cells

Strychnine seed tissue, light micrograph
Strychnine seed tissue. Light micrograph of a section through a seed of the strychnine plant (Strychnos nux vomica), showing the cellular bridges (plasmodesma)

HIV replication cycle, diagram
HIV replication cycle. Diagram and magnified views showing the retroviral process by which the human immunodeficiency virus (HIV) replicates

Cytoskeleton components, diagram. The cytoskeleton is the internal support structure of a cell, composed of filaments of various diameters in nanometres (nm)

Animal cell structure, artwork
Animal cell structure. Artwork showing the internal structure of an animal cell. Inside the cell, the cellular structures (organelles) include the Golgi apparatus (green)

Retinal rod cell anatomy, diagram

Retinal rod cell anatomy, artwork
Retinal rod cell anatomy. Artwork of the external (left) and internal (right) anatomical structure of a retinal cell. These cells are found in the retina that lines the back of the eyes

Virus particles entering cells, artwork
Virus particles (green) entering cells, computer artwork. The cell nuclei (dark blue) are also seen. The spikes on the virus particles are surface proteins that help them to attach to the cell

Intestinal endocrine cell, TEM
Intestinal endocrine cell, coloured transmission electron micrograph (TEM). This is a type 1 intestinal endocrine cell. The granules (red) contain serotonin

Nuclear envelope connecting to ER
Transmission electron micrograph of section through part of a nucleus of a filament cell in moss Physcomitrella patens showing connection between nuclear envelope and endoplasmic reticulum

Cell nuclei with chromatin
Transmission electron micrograph of several nuclei in meristematic tissue of the maize plant Zea mays root tip at interphase. Large nucleus approaching mitosis showing clumping of chromatin

LM of a thin section of an onion

Intestinal smooth muscle cells, TEM
Intestinal smooth muscle cells. Coloured transmission electron micrograph (TEM) of a section through several smooth muscle cells from the intestines

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The cell nucleus, often referred to as the control center of a plant cell, holds a world of mysteries waiting to be unraveled. In this captivating multiphoton fluorescence image of HeLa cells, we catch a glimpse into the intricate beauty that lies within. The nucleus stands out amidst the bustling activity with its distinct structure and importance. Just like in skin anatomy artwork, where every layer plays a crucial role in maintaining our body's integrity, the nucleus acts as the guardian of genetic information. It orchestrates vital processes through its various components and interactions. Take for instance the cytoskeleton in unicellular parasites captured under SEM C018 / 0518 - it showcases how even these tiny organisms rely on their nuclei for survival. Genetic metaphase analysis provides us with invaluable insights into cellular division and DNA replication. As seen in images C019 / 0289 and C019 / 0288, chromosomes align meticulously during metaphase ensuring accurate distribution of genetic material to daughter cells. Eukaryotic cell nucleus artwork further emphasizes its significance by highlighting its complex architecture and functions. Within this hub of activity lies chromatin remodelling factors diligently working alongside DNA (C015 / 5156 & C015 / 5155). Together they sculpt gene expression patterns essential for development and adaptation. But how does information enter or exit this central command? Importin protein complexes play an integral role here as depicted in images C015 / 5149 & C015 / 5148 where they are seen interacting with enzymes at nuclear pores. These gatekeepers ensure only authorized molecules gain access while safeguarding against potential threats. Intriguingly, human chromosomes magnified under SEM remind us that each individual possesses their own unique blueprint stored within their nuclei. This microscopic universe encapsulates our identity and hereditary traits passed down through generations. As we delve deeper into understanding the wonders held within each cell nucleus, we unlock secrets that could revolutionize medicine, agriculture, and beyond.