Eukaryotic Collection (#5)

Asperoccus turneri, seaweed
Plate 59 from Algae Danmonienses : or dried specimens of Marine Plants, principally collected in Devonshire by Mary Wyatt. 1834-1840

Fucus agarum, kelp
Plate 75 from Fuci, or coloured figures and descriptions of the Plants referred by botanists to the genus Fucus (1808-1819), Volume II, by Mary Dawson Turner

Chondus cripus, carrageen moss
Illustration from Algae Danmonienses: or dried specimens of Marine Plants, principally collected in Devonshire by Mary Wyatt; carefully named according to Dr. Hookers British Flora

Native necklace of fossil foraminifera (Alveolinae)
Native necklace of fossil foraminifera from John Whittakers cabinet, fossils dating from the Eocene Limestone, Sindh, India

Rhodophyta, Coralline algae
This specimen was collected by Charles Darwin in 1836 from Keeling Atoll, Indian Ocean

Raphiidonema faringdone, calcareous sponge
A vase-shaped calcareous sponge with numerous small canals from the Cretaceous of Berkshire, England

Chleophaga hybrida, kelp goose
Ff. 66. Watercolour painting by George Forster annotated Anas ganta Anas antarctica and made during Captain James Cooks second voyage to explore the southern continent (1772-75)

Coccoliths magnified a thousand times
An illustration of Coccoliths magnified a thousand times. Coccoliths are micro-fossils and feature heavily in the composition of chalk

Lichens result from an intimate relationship between a fungus and an alga; there are about 18, 000 species

Calcidiscus leptoporus and Syracolithus quadriperforatus, co
In this scanning electron micrograph, the transition of a life-cycle stage in Calcidiscus is shown from the outer cover to the inner layer. Specimen taken from W. Mediterranean

Minakatella longifila, slime mould

Actinoptychus, diatom
Scanning electron microscope image of the exterior valve of the diatom Actinoptychus (x 500 on a standard 9 cm wide print)

Chalk
A piece of flintless white chalk from the Upper Chalk, Flamborough, Yorks. Chalk is a sedimentary rock formed in deep seas

Marpolia spissa, fossilised algae
A fossilised type of green algae, possible filamentous cyanobacteria (Marpolia spissa), approximately 12 mm in height. This specimen was discovered in the Middle Cambrian, Burgess Shale, Canada

Euglena protozoan, SEM
Euglena protozoan (Euglena sp.), coloured scanning electron micrograph (SEM). This protozoan is described as flagellate because it has a flagellum (thin tail-like structure)

Flagellate protozoan, SEM
Flagellate protozoan, coloured scanning electron micrograph (SEM). This is a protozoan that has a flagellum (thin tail-like structure, lower left)

Paramecium protozoa, SEM
Paramecium protozoa (Paramecium sp.), coloured scanning electron micrograph (SEM). These protozoa (two seen) are described as ciliate because many cilia (hair-like structures) cover them

Mitochondria. Coloured transmission electron micrograph of mitochondria (circles). A mitochondrion is a membrane-bound organelle that exists in eukaryotic cells

Mitosis, artwork

Ribosome and mRNA
Ribosome protein and mRNA. Computer artwork of a protein (L30, spirals) from the large subunit of a yeast ribosome, complexed with messenger ribonucleic acid (mRNA, cylindrical strand)

Cilium and flagellum structure, artwork. Cilia and flagella (collectively known as undulipodia) are hair-like protrusions from a cell membrane

Eukaryotic flagellum structure, artwork
Eukaryotic flagellum structure. Cutaway artwork showing the internal structure of the flagellum in eukaryotic cells. Flagella are tail-like projections used for cell locomotion

Mitochondrion, artwork
Mitochondrion. Cutaway artwork showing the internal structure of a mitochondrion. This structure, found in eukaryotic cells, is the site of energy production

Animal cell processes, artwork
Animal cell processes. Cutaway artwork showing the structures inside an animal cell and four different processes that take place inside it or on its membrane (all marked by magnifying glasses)

RNA binding protein and mRNA complex. Computer model showing the molecular structure of Poly(A)-binding protein (PABP, orange-green) bound to a polyadenylate mRNA (messenger RNA)

Mitochondrial energy, conceptual image. Computer artwork of a glowing mitochondrion, representing the energy produced by these cell organelles

Plant cell, SEM
Plant cell. Coloured scanning electron micrograph (SEM) of a section through a plant cell, revealing its internal structure. The cell is encased in a cellulose, hemicellulose and pectin cell wall

Mitochondrion, SEM
Mitochondrion. Coloured scanning electron micrograph (SEM) of a mitochondrion in a nerve cell. Mitochondria are a type of organelle found in the cytoplasm of eukaryotic cells

Smooth endoplasmic reticulum, SEM
Endoplasmic reticulum. Coloured scanning electron micrograph (SEM) of smooth endoplasmic reticulum (SER) (orange, centre left) in the cytoplasm of a kidney cell

Selection of diatoms, SEM
Selection of diatoms, coloured scanning electron micrograph (SEM). Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Coscinodiscus diatom, SEM
Coscinodiscus diatom. Coloured scanning electron micrograph (SEM) of a Coscinodiscus diatom (red). This is a marine diatom

Larch bolete fungus (Suillus grevillei). Photographed in Aberdeenshire, Scotland, UK, in August

Silicoflagellate, SEM
Silicoflagellate. Coloured scanning electron micrograph (SEM) of the skeleton of a Dictyocha speculum silicoflagellate. Silicoflagellates are single-celled marine algae

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Eukaryotic organisms encompass a vast array of life forms, ranging from the microscopic to the towering kelp forests in our oceans. Take a closer look at these captivating hints that showcase the diversity and complexity of eukaryotes. Starting with budding yeast cells, we witness their remarkable ability to reproduce through cell division. Under the scanning electron microscope (SEM), dividing yeast cells reveal intricate structures and processes that contribute to their survival and proliferation. Moving on to pressed seaweed specimens, such as Dictyota dichotoma and Fucus bulbosus, we explore the fascinating world of marine algae. These eukaryotic organisms play crucial roles in ocean ecosystems by providing shelter for countless other species while also contributing to nutrient cycling. Delving deeper into microscopic wonders, we encounter Diatoms under SEM. These single-celled eukaryotes exhibit stunning geometric patterns on their silica-based shells. Their ecological significance cannot be overstated as they are responsible for a significant portion of Earth's oxygen production. Another mesmerizing microorganism is Discosphaera tubifera, commonly known as coccolithophore. These tiny calcifying algae adorn themselves with intricately sculpted calcium carbonate plates called coccoliths. Their presence can create breathtaking blooms visible from space. Shifting gears towards Plasmodium sp. , an insidious malarial parasite that infects human red blood cells, we confront one of the darker aspects lifeforms. This reminder highlights how even within this kingdom there exists both beauty and danger. To round out our exploration, let's not forget about majestic kelps like Fucus radiatus. These large brown algae form underwater forests teeming with biodiversity while serving as vital carbon sinks in our changing climate. Finally, artistic renditions depicting various cell types remind us that behind every scientific discovery lies creativity and imagination – essential tools for unraveling nature's mysteries.