Organelle Collection (#9)

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

Nucleolus, SEM
Nucleolus, coloured scanning electron micrograph (SEM). The nucleolus is responsible for producing components of ribosomes, the cells protein-manufacturing 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

Leaf section, SEM
Leaf section. Coloured scanning electron micrograph (SEM) of a section through a fractured leaf. At top is a single layer of cells that forms the epidermis of the leaf

Cell organelles, SEM
Cell organelles. Coloured scanning electron micrograph (SEM) of a section through a cell from a kidney proximal tubule. The cell nucleus (partially seen at top left)

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

Cell nucleus, SEM
Cell nucleus. Coloured scanning electron micrograph (SEM) of a section through the nucleus (centre right) of a kidney cell

Apoptosis, fluorescent light micrograph
Apoptosis. 2-photon fluorescence light micrograph of a cultured cell (centre) undergoing apoptosis, or programmed cell death. It is surrounded by healthy cells

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

Yeast cell, electron tomogram image. Yeast cell, Schizosaccharomyces pombe, created using a 3-D electron microscope. This involves firing beams of electrons from many different angles to create

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Organelles: The Tiny Powerhouses Within Our Cells The world of cells is a fascinating one, filled with intricate structures known as organelles. These tiny entities play crucial roles in maintaining the functionality and survival of our cells. From budding yeast to HeLa cells, each cell type possesses its unique set of organelles that contribute to their specialized functions. Under the lens of a light microscope, the HeLa cells reveal mesmerizing patterns resembling abstract artwork. Their delicate structures are visible, showcasing the complexity within these microscopic powerhouses. Meanwhile, another image captures nerve cells in all their glory - long and slender extensions reaching out like branches from a tree. Zooming in further using transmission electron microscopy (TEM), we get an up-close look at some specific organelles. The rough endoplasmic reticulum appears as a network of interconnected membranes studded with ribosomes responsible for protein synthesis. Mitochondria steal the spotlight next; these bean-shaped powerhouses generate energy for cellular activities through respiration. But it's not just animal cells that possess remarkable organelles; plant cells have their own unique features too. Chloroplasts, depicted beautifully through artwork, capture sunlight and convert it into energy via photosynthesis—a process vital for sustaining life on Earth. Another TEM image reveals Purkinje nerve cells—large neurons found in our brain's cerebellum—showcasing their intricate branching structure responsible for coordinating movement and balance. Finally, scanning electron microscopy (SEM) unveils the Golgi apparatus—an organelle involved in processing proteins and packaging them into vesicles for transportation throughout the cell or secretion outside it. These glimpses into different types of organelles highlight their diverse forms and functions within our cellular world. They remind us that even though they may be invisible to the naked eye, these minuscule entities hold immense importance in keeping our bodies functioning harmoniously at every level.