Mitochondrion Collection (#5)

The mitochondrion, often referred to as the powerhouse of the cell, is a fascinating and vital organelle found in various cell types

Mitochondrion Collection: Mitochondrion, SEM

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

Mitochondrion Collection: Cell organelles, SEM

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)

Mitochondrion Collection: Cell nucleus, SEM

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

Mitochondrion Collection: RNA processing protein, molecular model

RNA processing protein, molecular model
RNA processing protein, RNase MRP. Computer model showing the molecular structure of mitochondrial RNase MRP (mitochondrial RNA processing)

Mitochondrion Collection: Intestinal smooth muscle cells, TEM

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 mitochondrion, often referred to as the powerhouse of the cell, is a fascinating and vital organelle found in various cell types. In budding yeast cells, it plays a crucial role in energy production through cellular respiration. This tiny structure can be visualized using transmission electron microscopy (TEM), revealing its intricate details. Not limited to yeast cells, mitochondria are present in different cell types throughout our bodies. TEM images showcase their distinct shapes and sizes within plasma cells, eye muscles, macrophage cells, and hepatocyte liver cells. These microscopic snapshots allow scientists to study their functions and understand how they contribute to overall cellular health. Scanning electron microscopy (SEM) provides another perspective on mitochondria's appearance within animal cell structures. These high-resolution images capture the surface of these organelles with stunning detail. Illustrations further enhance our understanding of mitochondria's complex composition. They depict an animal cell nucleus containing cytoplasm filled with numerous mitochondria units intertwined with DNA strands and chromosomes. Such illustrations also highlight TFAM transcription factors bound to DNA molecules—an essential process for regulating mitochondrial gene expression. Artwork showcasing muscle fiber structure emphasizes the significance of mitochondria in muscle function. Their abundance within muscle fibers ensures efficient energy supply during physical activity.