A Tour of the Cell: Crash Course Biology #23

The cell is the basic unit of life, and our understanding of it has advanced as science, and the tools available to scientists, has advanced. In this episode of Crash Course Biology, we’ll take a look at the difference between prokaryotic and eukaryotic cells, take a guided tour of the eukaryotic cell, and learn why most cells are small. We’ll explore the eukaryotic cell’s surprising beginnings through an endosymbiosis that occurred about 1.5 billion years ago.

Chapters:
Introduction to the Cell 00:00
Classical Cell Theory 2:12
Parts of a Cell 5:37
Endosymbiosis 9:11
Modern Cell Theory 10:41
Review & Credits 12:23

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Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Leah H., David Fanska, Andrew Woods, Tawny Whaley, Sean Saunders, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Matt Curls, Jennifer Killen, Starstuff42, Jon Allen, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, Vaso, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks

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Want to find Crash Course elsewhere on the internet?

[adamiusmaximus]

i have adhd and i can actually listen to this.

[winning_again]

I'm 47 years old and back in school and THIS HELPS! Thank you!

THE MITOCHONDRIA IS THE POWERHOUSE OF THE CELL!!

[mattg]

Fantastic presenter - we need to see more of you!! Fabulous job

[UnderstandingCode]

0:44 The possibility of life arising spontaneously from inorganic materials is a fundamental question in the study of the origin of life on Earth.

Abiogenesis suggests that life began with the gradual chemical evolution of non-living substances into living organisms. This process is thought to have occurred over a long period, starting with simple inorganic compounds and leading to complex organic molecules necessary for life.

[xmoe_moniquex]

This really helps me study better than listening to my college lectures!! Thank you all for everything you do!!

[nyuh]

omg were finally getting to the cell !

[theantiskiasystem]

I love your voice haha! Your enthousiasm helps me retain the info, thank you.

[raziasultana]

i didnt know there was a new crash course biology course!

[monicareid]

Well done.
I love the word catawampus, too☀️

[naphyanaeem]

Just love your videos.
Keep uploading more lectures.

[edo]

I thought Cell tried to destroy the planet? Then Gohan defeated cell! Basically I can kill Cell if I go SSJ2.

[PrestonDLuffy]

Mitochondria are the powerhouse of the cell

[alchreimist]

i love this!! not only it's well-explained, it's also entertaining to listen

[farman]

You remember me school days ❤ thanks brdr 😊

[mihaisimtion]

The mitocondria is the MVP of the cell😂

[zyrenfall]

That doesn't look like the cell I'm inside of right now.

[Underscoreshell]

I have a bio test in 3 days, thank you so much!

[joefarrow]

"Life doesn't erase spontaneously from inorganic materials"

Like, to my understanding it did in the first place?

[camilusbaraka-slkl]

What should I do, do you have another app? Or should I just relly on the videos you post on youtube only?