TEM of endoplasmic reticulum in mammalian cell
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TEM of endoplasmic reticulum in mammalian cell
Rough endoplasmic reticulum. Transmission Electron Micrograph (TEM) of a section through a mammalian cell revealing rough endoplasmic reticulum (ER). ER is the system of membranes seen running across at upper image. Small granules attached to the membrane of the ER are ribosomes, the sites of protein synthesis. At lower right the large mass of the cell nucleus is seen, with dark areas of chromatin. ER originates from the nuclear membrane & divides the cell cytoplasm into a network of cavities called cisternae. Small vesicles bud from the ER to transport proteins and fats around the cell. Magnification: x66, 000 at 8x10 inch size
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Media ID 6401483
© NIBSC/SCIENCE PHOTO LIBRARY
Cell Structure Cytology Endoplasmic Reticulum Protein Synthesis Ribosome Rough Rough Endoplasmic Reticulum Micro Biology
EDITORS COMMENTS
This print showcases the intricate details of a mammalian cell's endoplasmic reticulum (ER) as captured through a transmission electron microscope (TEM). The upper image reveals the rough ER, characterized by its system of membranes running across. Attached to these membranes are small granules known as ribosomes, which serve as vital sites for protein synthesis within the cell. In the lower right corner, we observe the prominent mass of the cell nucleus with dark areas representing chromatin. It is worth noting that the ER originates from the nuclear membrane and plays a crucial role in dividing the cytoplasm into interconnected cavities called cisternae. The complexity and functionality of this cellular structure become apparent when considering that small vesicles bud from the ER to facilitate transportation of proteins and fats throughout various regions of the cell. This process ensures efficient communication and distribution within this microscopic world. With a magnification level reaching an astonishing x66,000 at an 8x10 inch size, this TEM image offers us a glimpse into one aspect of biological microcosms. Science Photo Library has expertly captured this stunning visual representation without any commercial intent but rather with a focus on showcasing scientific marvels like this photograph for educational purposes in fields such as biology, cytology, and micro-biology.
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