Organelles Collection (#5)

Organelles are the tiny structures within cells that perform specific functions, much like organs in our body

Organelles Collection: Small lymphocyte, TEM

Small lymphocyte, TEM
Small lymphocyte. Coloured transmission electron micrograph (TEM) showing the large central nucleus (brown) of a small lymphocyte (white blood cell)

Organelles Collection: White blood cell, TEM

White blood cell, TEM
White blood cell. Coloured transmission electron micrograph (TEM) of an eosinophil (a type of white blood cell), part of the bodys immune system

Organelles 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)

Organelles 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

Organelles Collection: Yeast cell, electron tomogram

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 are the tiny structures within cells that perform specific functions, much like organs in our body. They play a crucial role in maintaining the overall health and functionality of cells. Let's take a closer look at some fascinating organelles through various artistic representations and microscopic images. The rough endoplasmic reticulum (ER) is an extensive network of membranes involved in protein synthesis and transport within cells. In a stunning transmission electron microscopy (TEM) image, we can witness its intricate structure resembling a maze, highlighting its importance in cellular processes. Different cell types exhibit unique characteristics, as beautifully depicted through artwork. One such example is the Trypanosome protozoan, an intriguing single-celled organism with flagella that causes African sleeping sickness. Its distinct shape captured in artwork showcases its remarkable adaptability to survive within hosts. Nerve cells are vital for transmitting electrical signals throughout our bodies. TEM images provide us with breathtaking glimpses into their complex structure - long branching extensions called dendrites and axons covered by myelin sheaths - enabling efficient communication between neurons. Plasma cells are specialized immune cells responsible for producing antibodies to fight infections. A TEM image reveals their characteristic appearance with abundant rough ER indicating high protein synthesis activity, emphasizing their critical role in immunity. Another essential organelle is the Golgi apparatus, which modifies and packages proteins for transportation within or outside the cell. Scanning electron microscopy (SEM) provides detailed views of this organelle's stacked membrane discs resembling pancakes - an architectural marvel. Purkinje nerve cells found in the cerebellum coordinate movement control; they possess elaborate dendritic trees allowing them to receive vast amounts of information from other neurons. TEM captures these intricacies perfectly, showcasing their significance for motor coordination. Fibroblast cells contribute to tissue repair by synthesizing extracellular matrix components like collagen fibers. Artwork representing fibroblasts highlights their elongated shape and their role in maintaining tissue integrity.