Smooth Endoplasmic Reticulum Function and Structure | Cell Biology Simplified

Learn more about the structures and functions of the smooth endoplasmic reticulum in this quick introduction and overview.

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Music: "Blue Macaw" by Quincas Moreira

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Thanks for stopping by, this is 2 minute classroom and today we are talking about the smooth endoplasmic reticulum, also known as the Smooth ER.

The Smooth ER is a network of tubular membranous structures in eukaryotic cells. It is continuous with the Rough ER but is not studded with ribosomes, hence it’s smooth name a appearance.

Although it is close in proximity and name to the Rough ER, the smooth ER has very different but equally important functions.

These functions vary by cell type, but include:
The synthesis of cholesterol and certain steroids in the adrenal glands

Involvement in carbohydrate and lipid synthesis

These lipids are also used to synthesize phospholipids for the cell membrane

The Smooth ER has a major role in detoxification and is abundant in the liver where it detoxifies the body from drugs, alcohol, and general metabolic waste. Keeping you healthy and happy.

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In skeletal muscle cells, the smooth ER has a special role. In fact, it’s so special, it gets a different name, the sarcoplasmic reticulum. It is critical in the storage and release of calcium ions involved in muscle contraction.

And although the Smooth ER isn’t involved in protein synthesis, it does play an important role in the transport of proteins.

If you have a test coming up you should check out this playlist or you can watch more videos about cells like these ones.

Thanks for watching, and I’ll catch you next time.

[nadiaChergui-sj]

I have always taught in French and now I am going to start doing it in English. Your short videos are really very useful for me, they have helped me in recognizing and pronouncing scientific terms, thank you so much.

[rkade]

0:08, Start - What the Smooth ER is
0:14, Difference between Smooth and Rough ER
0:26, What the Smooth ER does
0:30 - 0:42, Functions
0:58, Bone functions
1:20, End

[eubjhij]

I really like how you make your videos last 2minutes, I have ADHD and I can't focus on a video for more than 2minutes so this is very helpful

[aepokkvulpex]

It is mindblowing that life just naturally evolved through chance collisions over millenia.

[liva]

your videos are saving my life i swear!!! I've been struggling with how my teacher is explaining how cells work and all their components and these 2 minutes straight to the point video are helping me BIG time! Thank you so much, appreciate the work you do!

[thebiggestlittlecity]

Thanks a lot.
I am a Sport science graduate but never realized Sarcoplasmic Recticulum is actually smooth ER or downright smooth ER functions differently based on different cells...

[brianruel]

Thank you good sir, appreciate the animation and clarity.

[roshnipethekar]

Thanku sir for this nice explanation and the detailed information 😘

[emilyzfrani]

0:41 has a typo in the last point --written, "Phosphoslipds, " instead of phospholipids ... nonetheless, good video

[norakvitousaroeun]

Bro what is synthesis of cholesterol mean??

[chalapathichalapathi]

Where good video and where used full often video

[Amrutha-pfhl]

Better not to be this fast.. most of them won't understand but ur diagrams and all r good please try to be slow