A Tour of the Cell: Crash Course Biology #23

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Published 2023-12-12

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

This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit BioInteractive.org/CrashCourse for more information.

Check out our Biology playlist here: • Biology

Watch this series in Spanish on our Crash Course en Español channel here: • Crash Course Biología Sources: docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYb…

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All Comments (21)

@Jeff-tt7wj 3 months ago

Im incredibly high and this is insane
@adamiusmaximus6852 3 months ago

i have adhd and i can actually listen to this.
@Squareboobs 4 months ago

If teachers at school were like this…
@1263903 4 months ago

THE MITOCHONDRIA IS THE POWERHOUSE OF THE CELL!!
@JarodM 4 months ago

I like this guy's enthusiasm~👍
@mattg2106 4 months ago

Fantastic presenter - we need to see more of you!! Fabulous job
@RainerTheGamer 4 months ago

so... when do i get my autographs?
@UnderstandingCode 4 months ago

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.
@adpirtle 4 months ago

I always get Robert Hooke and Anton van Leeuwenhoek mixed up in my brain.
@edo1497 4 months ago

I thought Cell tried to destroy the planet? Then Gohan defeated cell! Basically I can kill Cell if I go SSJ2.
@nyuh 4 months ago

omg were finally getting to the cell !
@PrestonDLuffy 4 months ago

Mitochondria are the powerhouse of the cell
@monicareid8858 4 months ago

Well done. I love the word catawampus, too☀️
@andrewliberman7694 4 months ago

Thanks!
@mihaisimtion6925 4 months ago

The mitocondria is the MVP of the cell😂
@md.tahseenraza4791 4 months ago

7:11 Sus AMONG US!!!
@naphyanaeem1037 4 months ago

Just love your videos. Keep uploading more lectures.
@zyrenfall 4 months ago

That doesn't look like the cell I'm inside of right now.
@Davlavi 3 months ago

Very informative thanks.🖖🙏
@ssthapit 4 months ago

I like the presenter's charima